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The leaves of a Beech tree.

3D rendering of a µCT scan of a leaf piece, resolution circa 40 µm/voxel.

Lichen Dolichousnea longissima. The photosynthetic appendages on the strands are leaf-like in appearance and function but ontogenically are not leaves.

A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants.^[1][2]

Typically a leaf is a thin, flattened organ borne above ground and specialized for photosynthesis, but many types of leaves are adapted in ways almost unrecognisable in those terms: some are not flat (for example many succulent leaves and conifers), some are not above ground (such as bulb scales), and some are without major photosynthetic function (consider for example cataphylls, spines, and cotyledons).

Conversely, many structures of non-vascular plants, or even of some lichens, which are not plants at all (in the sense of being members of the kingdom Plantae), do look and function much like leaves. Furthermore, several structures found in vascular plants look like leaves but are not actually leaves; they differ from leaves in their structures and origins. Examples include phyllodes, cladodes, and phylloclades.^[2]

General nature of leaves[link]

Typically leaves are flat and thin, thereby maximising the surface area directly exposed to light and promoting photosynthetic function. Externally they commonly are arranged on the plant in such ways as to expose their surfaces to light as efficiently as possible without shading each other, but there are many exceptions and complications; for instance plants adapted to windy conditions may have pendent leaves, such as in many willows and Eucalyptus.

Likewise, the internal organisation of most kinds of leaves has evolved to maximise exposure of the photosynthetic organelles, the chloroplasts, to light and to increase the absorption of carbon dioxide. Most leaves have stomata, which open or narrow to regulate the exchange of carbon dioxide, oxygen, and water vapour with the atmosphere.

In contrast however, some leaf forms are adapted to modulate the amount of light they absorb to avoid or mitigate excessive heat, ultraviolet damage, or desiccation, or to sacrifice light-absorption efficiency in favour of protection from herbivorous enemies. Among these forms the leaves of many xerophytes are conspicuous. For such plants their major constraint is not light flux or intensity, but heat, cold, drought, wind, herbivory, and various other hazards.^[3] Typical examples among such strategies are so-called window plants such as Fenestraria species, some Haworthia species such as Haworthia tesselata and Haworthia truncata^[4] and Bulbine mesembryanthemoides.^[5]

The shape and structure of leaves vary considerably from species to species of plant, depending largely on their adaptation to climate and available light, but also to other factors such as grazing animals, available nutrients, and ecological competition from other plants. Considerable changes in leaf type occur within species too, for example as a plant matures; as a case in point Eucalyptus species commonly have isobilateral, pendent leaves when mature and dominating their neighbours; however, such trees tend to have erect or horizontal dorsiventral leaves as seedlings, when their growth is limited by the available light.^[6] Other factors include the need to balance water loss at high temperature and low humidity against the need to absorb atmospheric carbon dioxide. In most plants leaves also are the primary organs responsible for transpiration and guttation.

Leaves can also store food and water, and are modified accordingly to meet these functions, for example in the leaves of succulent plants and in bulb scales. The concentration of photosynthetic structures in leaves requires that they are richer in protein, minerals, and sugars, than say, woody stem tissues. Accordingly leaves are prominent in the diet of many animals. This is true for humans, for whom leaf vegetables commonly are food staples.

A leaf shed in autumn.

Correspondingly, leaves represent heavy investment on the part of the plants bearing them, and their retention or disposition are the subject of elaborate strategies for dealing with pest pressures, seasonal conditions, and protective measures such as the growth of thorns and the production of phytoliths, lignins, tannins and poisons.

Deciduous plants in frigid or cold temperate regions typically shed their leaves in autumn, whereas in areas with a severe dry season, some plants may shed their leaves until the dry season ends. In either case the shed leaves may be expected to contribute their retained nutrients to the soil where they fall.

In contrast, many other non-seasonal plants, such as palms and conifers, retain their leaves for long periods; Welwitschia retains its two main leaves throughout a lifetime that may exceed a thousand years.

Not all plants have true leaves. Bryophytes (e.g., mosses and liverworts) are non-vascular plants, and, although they produce flattened, leaf-like structures that are rich in chlorophyll, these organs differ morphologically from the leaves of vascular plants; For one thing, they lack vascular tissue. Vascularised leaves first evolved following the Devonian period, when carbon dioxide concentration in the atmosphere dropped significantly. This occurred independently in two separate lineages of vascular plants: the microphylls of lycophytes and the euphylls ("true leaves") of ferns, gymnosperms, and angiosperms. Euphylls are also referred to as macrophylls or megaphylls ("large leaves").

Large-scale features (leaf morphology)[link]

A structurally complete leaf of an angiosperm consists of a petiole (leaf stalk), a lamina (leaf blade), and stipules (small structures located to either side of the base of the petiole). Not every species produces leaves with all of these structural components. In certain species, paired stipules are not obvious or are absent altogether. A petiole may be absent, or the blade may not be laminar (flattened). The tremendous variety shown in leaf structure (anatomy) from species to species is presented in detail below under morphology.

The petiole mechanically links the leaf to the plant and provides the route for transfer of water and sugars to and from the leaf. The lamina is typically the location of the majority of photosynthesis.

Anatomy[link]

This section requires expansion.

Medium scale features[link]

Leaves are normally extensively vascularised and are typically covered by a dense network of xylem, which supply water for photosynthesis, and phloem, which remove the sugars produced by photosynthesis. Many leaves are covered in trichomes (small hairs) which have a diverse range of structures and functions.

Small-scale features[link]

A leaf is a plant organ and is made up of a collection of tissues in a regular organisation. The major tissue systems present are:

1. The epidermis that covers the upper and lower surfaces
2. The mesophyll inside the leaf that is rich in chloroplasts (also called chlorenchyma)
3. The arrangement of veins (the vascular tissue)

These three tissue systems typically form a regular organisation at the cellular scale.

Major leaf tissues[link]

Epidermis[link]

SEM image of Nicotiana alata leaf's epidermis, showing trichomes (hair-like appendages) and stomata (eye-shaped slits, visible at full resolution).

The epidermis is the outer layer of cells covering the leaf. It forms the boundary separating the plant's inner cells from the external world. The epidermis serves several functions: protection against water loss by way of transpiration, regulation of gas exchange, secretion of metabolic compounds, and (in some species) absorption of water. Most leaves show dorsoventral anatomy: The upper (adaxial) and lower (abaxial) surfaces have somewhat different construction and may serve different functions.

The epidermis is usually transparent (epidermal cells lack chloroplasts) and coated on the outer side with a waxy cuticle that prevents water loss. The cuticle is in some cases thinner on the lower epidermis than on the upper epidermis, and is generally thicker on leaves from dry climates as compared with those from wet climates.

The epidermis tissue includes several differentiated cell types: epidermal cells, epidermal hair cells (trichomes) cells in the stomate complex; guard cells and subsidiary cells. The epidermal cells are the most numerous, largest, and least specialized and form the majority of the epidermis. These are typically more elongated in the leaves of monocots than in those of dicots.

The epidermis is covered with pores called stomata, part of a stoma complex consisting of a pore surrounded on each side by chloroplast-containing guard cells, and two to four subsidiary cells that lack chloroplasts. Opening and closing of the stoma complex regulates the exchange of gases and water vapor between the outside air and the interior of the leaf and plays an important role in allowing photosynthesis without letting the leaf dry out. In a typical leaf, the stomata are more numerous over the abaxial (lower) epidermis than the adaxial (upper) epidermis and more numerous in plants from cooler climates.

Mesophyll[link]

Most of the interior of the leaf between the upper and lower layers of epidermis is a parenchyma (ground tissue) or chlorenchyma tissue called the mesophyll (Greek for "middle leaf"). This assimilation tissue is the primary location of photosynthesis in the plant. The products of photosynthesis are called "assimilates".

In ferns and most flowering plants, the mesophyll is divided into two layers:

• An upper palisade layer of tightly packed, vertically elongated cells, one to two cells thick, directly beneath the adaxial epidermis. Its cells contain many more chloroplasts than the spongy layer. These long cylindrical cells are regularly arranged in one to five rows. Cylindrical cells, with the chloroplasts close to the walls of the cell, can take optimal advantage of light. The slight separation of the cells provides maximum absorption of carbon dioxide. This separation must be minimal to afford capillary action for water distribution. In order to adapt to their different environment (such as sun or shade), plants had to adapt this structure to obtain optimal result. Sun leaves have a multi-layered palisade layer, while shade leaves or older leaves closer to the soil are single-layered.
• Beneath the palisade layer is the spongy layer. The cells of the spongy layer are more rounded and not so tightly packed. There are large intercellular air spaces. These cells contain fewer chloroplasts than those of the palisade layer. The pores or stomata of the epidermis open into substomatal chambers, which are connected to the air spaces between the spongy layer cells.

These two different layers of the mesophyll are absent in many aquatic and marsh plants. Even an epidermis and a mesophyll may be lacking. Instead for their gaseous exchanges they use a homogeneous aerenchyma (thin-walled cells separated by large gas-filled spaces). Their stomata are situated at the upper surface.

Leaves are normally green in color, which comes from chlorophyll found in plastids in the chlorenchyma cells. Plants that lack chlorophyll cannot photosynthesize.

Veins[link]

The veins of a bramble leaf.

The veins are the vascular tissue of the leaf and are located in the spongy layer of the mesophyll. They are typical examples of pattern formation through ramification. The pattern of the veins is called venation.

The veins are made up of:

• Xylem: tubes that bring water and minerals from the roots into the leaf.
• Phloem: tubes that usually move sap, with dissolved sucrose, produced by photosynthesis in the leaf, out of the leaf.

The xylem typically lies on the adaxial side of the vascular bundle and the phloem typically lies on the abaxial side. Both are embedded in a dense parenchyma tissue, called the pith or sheath, which usually includes some structural collenchyma tissue.

Seasonal leaf loss[link]

Leaves shifting color in fall

Leaves in temperate, boreal, and seasonally dry zones may be seasonally deciduous (falling off or dying for the inclement season). This mechanism to shed leaves is called abscission. After the leaf is shed, a leaf scar develops on the twig. In cold autumns, they sometimes change color, and turn yellow, bright-orange, or red, as various accessory pigments (carotenoids and xanthophylls) are revealed when the tree responds to cold and reduced sunlight by curtailing chlorophyll production. Red anthocyanin pigments are now thought to be produced in the leaf as it dies, possibly to mask the yellow hue left when the chlorophyll is lost - yellow leaves appear to attract herbivores such as aphids.^[7]

Morphology[link]

The Citrus leaf is identified by the pores and pigments, as well as the margins.

External leaf characteristics (such as shape, margin, hairs, etc.) are important for identifying plant species, and botanists have developed a rich terminology for describing leaf characteristics. These structures are a part of what makes leaves determinant; they grow and achieve a specific pattern and shape, then stop. Other plant parts like stems or roots are non-determinant, and will usually continue to grow as long as they have the resources to do so.

Classification of leaves can occur through many different designative schema, and the type of leaf is usually characteristic of a species, although some species produce more than one type of leaf. The longest type of leaf is a leaf from palm trees, measuring at nine feet long. The terminology associated with the description of leaf morphology is presented, in illustrated form, at Wikibooks.

Basic types[link]

Leaves of the White Spruce (Picea glauca) are needle-shaped and their arrangement is spiral

• Ferns have fronds
• Conifer leaves are typically needle-, awl-, or scale-shaped
• Angiosperm (flowering plant) leaves: the standard form includes stipules, a petiole, and a lamina
• Lycophytes have microphyll leaves.
• Sheath leaves (type found in most grasses)
• Other specialized leaves (such as those of Nepenthes)

Arrangement on the stem[link]

Different terms are usually used to describe leaf placement (phyllotaxis):

The leaves on this plant are arranged in pairs opposite one another, with successive pairs at right angles to each other ("decussate") along the red stem. Note the developing buds in the axils of these leaves.

• Alternate – leaf attachments are singular at nodes, and leaves alternate direction, to a greater or lesser degree, along the stem.
• Opposite – Two structures, one on each opposite side of the stem, typically leaves, branches, or flower parts. Leaf attachments are paired at each node; decussate if, as typical, each successive pair is rotated 90° progressing along the stem; or distichous if not rotated, but two-ranked (in the same geometric flat-plane).
• Whorled – three or more leaves attach at each point or node on the stem. As with opposite leaves, successive whorls may or may not be decussate, rotated by half the angle between the leaves in the whorl (i.e., successive whorls of three rotated 60°, whorls of four rotated 45°, etc.). Opposite leaves may appear whorled near the tip of the stem.
• Rosulate – leaves form a rosette

As a stem grows, leaves tend to appear arranged around the stem in a way that optimizes yield of light. In essence, leaves form a helix pattern centered around the stem, either clockwise or counterclockwise, with (depending upon the species) the same angle of divergence. There is a regularity in these angles and they follow the numbers in a Fibonacci sequence: 1/2, 2/3, 3/5, 5/8, 8/13, 13/21, 21/34, 34/55, 55/89. This series tends to a limit close to 360° x 34/89 = 137.52 or 137° 30', an angle known in mathematics as the golden angle. In the series, the numerator indicates the number of complete turns or "gyres" until a leaf arrives at the initial position. The denominator indicates the number of leaves in the arrangement. This can be demonstrated by the following:

• alternate leaves have an angle of 180° (or 1/2)
• 120° (or 1/3) : three leaves in one circle
• 144° (or 2/5) : five leaves in two gyres
• 135° (or 3/8) : eight leaves in three gyres.

Divisions of the blade[link]

A leaf with laminar structure and pinnate venation

Two basic forms of leaves can be described considering the way the blade (lamina) is divided. A simple leaf has an undivided blade. However, the leaf shape may be formed of lobes, but the gaps between lobes do not reach to the main vein. A compound leaf has a fully subdivided blade, each leaflet of the blade separated along a main or secondary vein. Because each leaflet can appear to be a simple leaf, it is important to recognize where the petiole occurs to identify a compound leaf. Compound leaves are a characteristic of some families of higher plants, such as the Fabaceae. The middle vein of a compound leaf or a frond, when it is present, is called a rachis.

• Palmately compound leaves have the leaflets radiating from the end of the petiole, like fingers off the palm of a hand, e.g. Cannabis (hemp) and Aesculus (buckeyes).
• Pinnately compound leaves have the leaflets arranged along the main or mid-vein.
  • odd pinnate: with a terminal leaflet, e.g. Fraxinus (ash).
  • even pinnate: lacking a terminal leaflet, e.g. Swietenia (mahogany).
• Bipinnately compound leaves are twice divided: the leaflets are arranged along a secondary vein that is one of several branching off the rachis. Each leaflet is called a "pinnule". The pinnules on one secondary vein are called "pinna"; e.g. Albizia (silk tree).
• trifoliate (or trifoliolate): a pinnate leaf with just three leaflets, e.g. Trifolium (clover), Laburnum (laburnum).
• pinnatifid: pinnately dissected to the central vein, but with the leaflets not entirely separate, e.g. Polypodium, some Sorbus (whitebeams). In pinnately veined leaves the central vein in known as the midrib.

Characteristics of the petiole[link]

The overgrown petioles of Rhubarb (Rheum rhabarbarum) are edible.

Petiolated leaves have a petiole (leaf stem). Sessile leaves do not: The blade attaches directly to the stem. In clasping or decurrent leaves, the blade partially or wholly surrounds the stem, often giving the impression that the shoot grows through the leaf. When this is the case, the leaves are called "perfoliate", such as in Claytonia perfoliata. In peltate leaves, the petiole attaches to the blade inside from the blade margin.

In some Acacia species, such as the Koa Tree (Acacia koa), the petioles are expanded or broadened and function like leaf blades; these are called phyllodes. There may or may not be normal pinnate leaves at the tip of the phyllode.

A stipule, present on the leaves of many dicotyledons, is an appendage on each side at the base of the petiole resembling a small leaf. Stipules may be lasting and not be shed (a stipulate leaf, such as in roses and beans), or be shed as the leaf expands, leaving a stipule scar on the twig (an exstipulate leaf).

• The situation, arrangement, and structure of the stipules is called the "stipulation".
  • free
  • adnate : fused to the petiole base
  • ochreate : provided with ochrea, or sheath-formed stipules, e.g. rhubarb,
  • encircling the petiole base
  • interpetiolar : between the petioles of two opposite leaves.
  • intrapetiolar : between the petiole and the subtending stem

Venation[link]

Branching veins on underside of taro leaf

The venation within the bract of a Lime tree.

The lower epidermis of Tilia × europaea

Palmate-veined leaf

There are two subtypes of venation, namely, craspedodromous, where the major veins stretch up to the margin of the leaf, and camptodromous, when major veins extend close to the margin, but bend before they intersect with the margin.

• Feather-veined, reticulate (also called pinnate-netted, penniribbed, penninerved, or penniveined) – the veins arise pinnately from a single mid-vein and subdivide into veinlets. These, in turn, form a complicated network. This type of venation is typical for (but by no means limited to) dicotyledons.
• Three main veins branch at the base of the lamina and run essentially parallel subsequently, as in Ceanothus. A similar pattern (with 3-7 veins) is especially conspicuous in Melastomataceae.
• Palmate-netted, palmate-veined, fan-veined; several main veins diverge from near the leaf base where the petiole attaches, and radiate toward the edge of the leaf, e.g. most Acer (maples).
• Parallel-veined, parallel-ribbed, parallel-nerved, penniparallel – veins run parallel for the length of the leaf, from the base to the apex. Commissural veins (small veins) connect the major parallel veins. Typical for most monocotyledons, such as grasses.
• Dichotomous – There are no dominant bundles, with the veins forking regularly by pairs; found in Ginkgo and some pteridophytes.

Note that, although it is the more complex pattern, branching veins appear to be plesiomorphic and in some form were present in ancient seed plants as long as 250 million years ago. A pseudo-reticulate venation that is actually a highly modified penniparallel one is an autapomorphy of some Melanthiaceae, which are monocots, e.g. Paris quadrifolia (True-lover's Knot).

Morphology changes within a single plant[link]

• Homoblasty - Characteristic in which a plant has small changes in leaf size, shape, and growth habit between juvenile and adult stages.
• Heteroblasty - Characteristic in which a plant has marked changes in leaf size, shape, and growth habit between juvenile and adult stages.

Terminology[link]

Chart illustrating some leaf morphology terms

A portion of a coriander leaf

Shape[link]

Edge (margin)[link]

• ciliate: fringed with hairs
• crenate: wavy-toothed; dentate with rounded teeth, such as Fagus (beech)
• crenulate finely or shallowly crenate
• dentate: toothed, such as Castanea (chestnut)
  • coarse-toothed: with large teeth
  • glandular toothed: with teeth that bear glands.
• denticulate: finely toothed
• doubly toothed: each tooth bearing smaller teeth, such as Ulmus (elm)
• entire: even; with a smooth margin; without toothing
• lobate: indented, with the indentations not reaching to the center, such as many Quercus (oaks)
  • palmately lobed: indented with the indentations reaching to the center, such as Humulus (hop).
• serrate: saw-toothed with asymmetrical teeth pointing forward, such as Urtica (nettle)
• serrulate: finely serrate
• sinuate: with deep, wave-like indentations; coarsely crenate, such as many Rumex (docks)
• spiny or pungent: with stiff, sharp points, such as some Ilex (hollies) and Cirsium (thistles).

Tip[link]

Leaves showing various morphologies. Clockwise from upper left: tripartite lobation, elliptic with serrulate margin, peltate with palmate venation, acuminate odd-pinnate (center), pinnatisect, lobed, elliptic with entire margin

• acuminate: long-pointed, prolonged into a narrow, tapering point in a concave manner.
• acute: ending in a sharp, but not prolonged point
• cuspidate: with a sharp, elongated, rigid tip; tipped with a cusp.
• emarginate: indented, with a shallow notch at the tip.
• mucronate: abruptly tipped with a small short point, as a continuation of the midrib; tipped with a mucro.
• mucronulate: mucronate, but with a smaller spine.
• obcordate: inversely heart-shaped, deeply notched at the top.
• obtuse: rounded or blunt
• truncate: ending abruptly with a flat end, that looks cut off.

Base[link]

• acuminate: coming to a sharp, narrow, prolonged point.
• acute: coming to a sharp, but not prolonged point.
• auriculate: ear-shaped.
• cordate: heart-shaped with the notch towards the stalk.
• cuneate: wedge-shaped.
• hastate: shaped like an halberd and with the basal lobes pointing outward.
• oblique: slanting.
• reniform: kidney-shaped but rounder and broader than long.
• rounded: curving shape.
• sagittate: shaped like an arrowhead and with the acute basal lobes pointing downward.
• truncate: ending abruptly with a flat end, that looks cut off.

Surface[link]

• farinose: bearing farina; mealy, covered with a waxy, whitish powder.
• glabrous: smooth, not hairy.
• glaucous: with a whitish bloom; covered with a very fine, bluish-white powder.
• glutinous: sticky, viscid.
• papillate, or papillose: bearing papillae (minute, nipple-shaped protuberances).
• pubescent: covered with erect hairs (especially soft and short ones).
• punctate: marked with dots; dotted with depressions or with translucent glands or colored dots.
• rugose: deeply wrinkled; with veins clearly visible.
• scurfy: covered with tiny, broad scalelike particles.
• tuberculate: covered with tubercles; covered with warty prominences.
• verrucose: warted, with warty outgrowths.
• viscid, or viscous: covered with thick, sticky secretions.

The leaf surface is also host to a large variety of microorganisms; in this context it is referred to as the phyllosphere.

Hairiness[link]

Common Mullein (Verbascum thapsus) leaves are covered in dense, stellate trichomes.

Scanning electron microscope image of trichomes on the lower surface of a Coleus blumei (coleus) leaf.

"Hairs" on plants are properly called trichomes. Leaves can show several degrees of hairiness. The meaning of several of the following terms can overlap.

• arachnoid, or arachnose: with many fine, entangled hairs giving a cobwebby appearance.
• barbellate: with finely barbed hairs (barbellae).
• bearded: with long, stiff hairs.
• bristly: with stiff hair-like prickles.
• canescent: hoary with dense grayish-white pubescence.
• ciliate: marginally fringed with short hairs (cilia).
• ciliolate: minutely ciliate.
• floccose: with flocks of soft, woolly hairs, which tend to rub off.
• glabrescent: losing hairs with age.
• glabrous: no hairs of any kind present.
• glandular: with a gland at the tip of the hair.
• hirsute: with rather rough or stiff hairs.
• hispid: with rigid, bristly hairs.
• hispidulous: minutely hispid.
• hoary: with a fine, close grayish-white pubescence.
• lanate, or lanose: with woolly hairs.
• pilose: with soft, clearly separated hairs.
• puberulent, or puberulous: with fine, minute hairs.
• pubescent: with soft, short and erect hairs.
• scabrous, or scabrid: rough to the touch.
• sericeous: silky appearance through fine, straight and appressed (lying close and flat) hairs.
• silky: with adpressed, soft and straight pubescence.
• stellate, or stelliform: with star-shaped hairs.
• strigose: with appressed, sharp, straight and stiff hairs.
• tomentose: densely pubescent with matted, soft white woolly hairs.
  • cano-tomentose: between canescent and tomentose.
  • felted-tomentose: woolly and matted with curly hairs.
• tomentulose: minutely or only slightly tomentose.
• villous: with long and soft hairs, usually curved.
• woolly:' with long, soft and tortuous or matted hairs.

Adaptations[link]

The embedded lists in this article may contain items that are not encyclopedic. Please help out by removing such elements and incorporating appropriate items into the main body of the article. (February 2008)

Poinsettia bracts are leaves which have evolved red pigmentation in order to attract insects and birds to the central flowers, an adaptive function normally served by petals (which are themselves leaves highly modified by evolution).

In the course of evolution, leaves have adapted to different environments in the following ways:

• A certain surface structure avoids moistening by rain and contamination (See Lotus effect).
• Sliced leaves reduce wind resistance.
• Hairs on the leaf surface trap humidity in dry climates and create a boundary layer reducing water loss.
• Waxy leaf surfaces reduce water loss.
• Large surface area provides large area for sunlight and shade for plant to minimize heating and reduce water loss.
• In more or less opaque or buried in the soil leaves, translucent windows filter the light before the photosynthesis takes place at the inner leaf surfaces (e.g. Fenestraria).
• Succulent leaves store water and organic acids for use in CAM photosynthesis.
• Aromatic oils, poisons or pheromones produced by leaf borne glands deter herbivores (e.g. eucalypts).
• Inclusions of crystalline minerals deter herbivores (e.g. silica phytoliths in grasses, raphides in Araceae).
• Petals attracts pollinators.
• Spines protect the plants (e.g. cacti).
• Insect traps feed the plants directly (see carnivorous plants).
• Bulbs store food and water (e.g. onions).
• Tendrils allow the plant to climb (e.g. peas).
• Bracts and pseudanthia (false flowers) replace normal flower structures when the true flowers are greatly reduced (e.g. Spurges).

Interactions with other organisms[link]

Some insects mimic leaves (Kallima inachus shown)

A girl playing with leaves

Leaf after being eaten by Caterpillar

Dew on a leaf

Although not as nutritious as other organs such as fruit, leaves provide a food source for many organisms. Animals which eat leaves are known as folivores. The leaf is one of the most vital parts of the plant, and plants have evolved protection against folivores such as tannins, chemicals which hinder the digestion of proteins and have an unpleasant taste.

Some animals have cryptic adaptations to avoid their own predators. For example, some caterpillars will create a small home in the leaf by folding it over themselves, while other herbivores and their prey mimic the appearance of the leaf. Some insects, such as the katydid, take this even further, moving from side to side much like a leaf does in the wind.

Bibliography[link]

• Leaves: The formation, charactistics and uses of hundred of leaves in all parts of the world by Ghillean Tolmie Prance. 324 photographic plates in black and white, and colour by Kjell B Sandved 256 pages^[8]

Footnotes[link]

See also[link]

• Abscission – loss of leaves
• Cladode - a flattened photsynthetic stem, if very leaf-like then it is called a Phylloclade
• Cladophyll – a stem-like leaf part (synonym: phyllode)
• Evolution of leaves
• Guttation – beads of fluid forming at leaf margins
• Leaf area index
• Leaf protein concentrate
• Leaf Sensor – a device that measures the moisture level in plant leaves
• Vernation – sprouting of leaves, also the arrangement of leaves in the bud

External links[link]

• Media related to Leaves at Wikimedia Commons
• The Wiktionary entry for leaf
• VASCULAR PLANT SYSTEMATICS Section B. General Characters and Character States: Position and Arrangement
• Science aid: Leaf Leaf structure and transpiration resource for teens.

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Eric Clapton CBE
Clapton on stage at the Hard Rock Calling concert, Hyde Park, London on 28 June 2008.
Background information
Birth name	Eric Patrick Clapton
Also known as	Slowhand
Born	(1945-03-30) 30 March 1945 (age 67) Ripley, Surrey, England
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Years active	1962–present
Labels	Warner Bros., Reprise, Polydor, RSO, Atco, Apple, Deram[1]
Associated acts	The Yardbirds, John Mayall & the Bluesbreakers, Powerhouse, Cream, Free Creek, The Dirty Mac, Blind Faith, J.J. Cale, The Plastic Ono Band, Delaney, Bonnie & Friends, Derek and the Dominos, Sheryl Crow, The Beatles, Phil Collins, The Rolling Stones, Luciano Pavarotti, The Band, Freddie King, B.B. King, Mark Knopfler, Brian Wilson, John Mayer, Roger Waters, Dire Straits
Website	www.ericclapton.com
Notable instruments
See: Guitars section "Blackie": Fender Stratocaster "Brownie": Fender Stratocaster

Eric Patrick Clapton, CBE, (born 30 March 1945) is an English guitarist and singer-songwriter. Clapton is the only three-time inductee to the Rock and Roll Hall of Fame: once as a solo artist, and separately as a member of The Yardbirds and Cream. Clapton has been referred to as one of the most important and influential guitarists of all time.^[2] Clapton ranked second in Rolling Stone magazine's list of the "100 Greatest Guitarists of All Time"^[3] and fourth in Gibson's Top 50 Guitarists of All Time.^[4]

In the mid 1960s, Clapton departed from the Yardbirds to play blues with John Mayall & the Bluesbreakers. In his one-year stay with Mayall, Clapton gained the nickname "Slowhand". Immediately after leaving Mayall, Clapton formed Cream, a power trio with drummer Ginger Baker and bassist Jack Bruce in which Clapton played sustained blues improvisations and "arty, blues-based psychedelic pop." For most of the 1970s, Clapton's output bore the influence of the mellow style of J.J. Cale and the reggae of Bob Marley. His version of Marley's "I Shot the Sheriff" helped reggae reach a mass market.^[5] Two of his most popular recordings were "Layla", recorded by Derek and the Dominos, another band he formed and Robert Johnson's "Crossroads", recorded by Cream. A recipient of seventeen Grammy Awards,^[6] in 2004 Clapton was awarded a CBE for services to music.^[7] In 1998, Clapton, a recovering alcoholic and drug addict, founded the Crossroads Centre on Antigua, a medical facility for recovering substance abusers.^[8]

Early life[link]

Eric Patrick Clapton was born in Ripley, Surrey, England, the son of 16-year-old Patricia Molly Clapton (b. 7 January 1929 d. March 1999) and Edward Walter Fryer (21 March 1920 – 15 May 1985), a 25-year-old soldier from Montreal, Quebec.^[9] Fryer shipped off to war prior to Clapton's birth and then returned to Canada. Clapton grew up with his grandmother, Rose, and her second husband, Jack Clapp, who was stepfather to Patricia Clapton and her brother Adrian, believing they were his parents and that his mother was actually his older sister. The similarity in surnames gave rise to the erroneous belief that Clapton's real surname is Clapp (Reginald Cecil Clapton was the name of Rose's first husband, Eric Clapton's maternal grandfather).^[10] Years later, his mother married another Canadian soldier and moved to Germany,^[11] leaving young Eric with his grandparents in Surrey.^[12]

Clapton received an acoustic Hoyer guitar, made in Germany, for his thirteenth birthday, but the inexpensive steel-stringed instrument was difficult to play and he briefly lost interest.^[12] Two years later Clapton picked it up again and started playing consistently.^[12] Clapton was influenced by the blues from an early age, and practised long hours to learn the chords of blues music by playing along to the records.^[13] He preserved his practice sessions using his portable Grundig reel-to-reel tape recorder, listening to them over and over until he felt he'd got it right.^[13][14]

After leaving Hollyfield School, in Surbiton, in 1961, Clapton studied at the Kingston College of Art but was dismissed at the end of the academic year because his focus remained on music rather than art. His guitar playing was so advanced that by the age of 16 he was getting noticed.^[14] Around this time Clapton began busking around Kingston, Richmond, and the West End.^[15] In 1962, Clapton started performing as a duo with fellow blues enthusiast David Brock in pubs around Surrey.^[14] When he was seventeen years old Clapton joined his first band, an early British R&B group, "The Roosters", whose other guitarist was Tom McGuinness. He stayed with this band from January through August 1963.^[16] In October of that year, Clapton did a seven-gig stint with Casey Jones & The Engineers.^[16]

Career[link]

1960s[link]

The Yardbirds and the Bluesbreakers[link]

In October 1963 Clapton joined The Yardbirds, a blues-influenced rock and roll band, and stayed with them until March 1965. Synthesising influences from Chicago blues and leading blues guitarists such as Buddy Guy, Freddie King, and B. B. King, Clapton forged a distinctive style and rapidly became one of the most talked-about guitarists in the British music scene.^[17] The band initially played Chess/Checker/Vee-Jay blues numbers and began to attract a large cult following when they took over the Rolling Stones' residency at the Crawdaddy Club in Richmond. They toured England with American bluesman Sonny Boy Williamson II; a joint LP album, recorded in December 1963, was issued in 1965.

It was during this time period that Clapton's Yardbirds rhythm guitarist, Chris Dreja, recalled that whenever Clapton broke a guitar string during a concert, he would stay on stage and replace it. The English audiences would wait out the delay by doing what is called a "slow handclap". Clapton told his official biographer, Ray Coleman, that, "My nickname of 'Slowhand' came from Giorgio Gomelsky. He coined it as a good pun. He kept saying I was a fast player, so he put together the slow handclap phrase into Slowhand as a play on words".^[18]

In March 1965 the Yardbirds had their first major hit, "For Your Love", on which Clapton played guitar. The Yardbirds elected to move toward a pop-oriented sound, in part because of the success of "For Your Love", written by pop songwriter-for-hire Graham Gouldman, who had also written hit songs for Herman's Hermits and The Hollies. Still musically devoted to the blues, Clapton was opposed to the move, and left the band. He recommended fellow guitarist Jimmy Page as his replacement, but Page was at that time unwilling to relinquish his lucrative career as a freelance studio musician, so Page in turn recommended Clapton's successor, Jeff Beck.^[17] While Beck and Page played together in the Yardbirds, the trio of Beck, Page, and Clapton were never in the group together. However, the trio did appear on the 12-date benefit tour for Action for Research into Multiple Sclerosis in 1983, as well as on the album Guitar Boogie.

Clapton joined John Mayall & the Bluesbreakers in April 1965, only to quit a few months later. In the summer of 1965 he left for Greece with a band called The Glands, which included his old friend Ben Palmer on piano. In November 1965 he rejoined John Mayall. During his second Bluesbreakers stint, Clapton gained a reputation as the best blues guitarist on the club circuit. Although Clapton gained world fame for his playing on the influential album, Blues Breakers – John Mayall – With Eric Clapton, this album was not released until Clapton had left the Bluesbreakers for the last time. Having swapped his Fender Telecaster and Vox AC30 amplifier for a 1960 Gibson Les Paul Standard guitar and Marshall amplifier, Clapton's sound and playing inspired a well-publicised graffiti that deified him with the famous slogan "Clapton is God". The phrase was spray-painted by an admirer on a wall in an Islington Underground station in the autumn of 1967. The graffiti was captured in a now-famous photograph, in which a dog is urinating on the wall. Clapton is reported to have been embarrassed by the slogan, saying in his The South Bank Show profile in 1987, "I never accepted that I was the greatest guitar player in the world. I always wanted to be the greatest guitar player in the world, but that's an ideal, and I accept it as an ideal". The phrase began to appear in other areas of Islington throughout the mid 1960s.^[19]

Cream[link]

Clapton left the Bluesbreakers in July 1966 (to be replaced by Peter Green) and formed Cream, one of the earliest supergroups, with Jack Bruce on bass (also of Manfred Mann, the Bluesbreakers, and the Graham Bond Organisation) and Ginger Baker on drums (another member of the Graham Bond Organisation). Before the formation of Cream, Clapton was not well known in the United States; he left the Yardbirds before "For Your Love" hit the American Top Ten, and had yet to perform there.^[20] During his time with Cream, Clapton began to develop as a singer, songwriter, and guitarist, though Bruce took most of the lead vocals and wrote the majority of the material with lyricist Pete Brown.^[17] Cream's first gig was an unofficial performance at the Twisted Wheel Club in Manchester on 29 July 1966 before their full debut two nights later at the National Jazz and Blues Festival in Windsor. Cream established its enduring legend with the high-volume blues jamming and extended solos of their live shows.

In early 1967 Clapton's status as Britain's top guitarist was rivalled by the emergence of Jimi Hendrix, an acid rock-infused guitarist who used wailing feedback and effects pedals to create new sounds for the instrument. Hendrix attended a performance of the newly-formed Cream at the Central London Polytechnic on 1 October 1966, during which Hendrix sat in on a double-timed version of "Killing Floor". Top UK stars including Clapton, Pete Townshend, and members of The Rolling Stones and The Beatles avidly attended Hendrix's early club performances. Hendrix's arrival had an immediate and major effect on the next phase of Clapton's career, although Clapton continued to be recognised in UK music polls as the premier guitarist.

Clapton first visited the United States while touring with Cream. In March 1967, Cream performed a nine-show stand at the RKO Theater in New York. They recorded Disraeli Gears in New York from 11–15 May 1967. Cream's repertoire varied from hard rock ("I Feel Free") to lengthy blues-based instrumental jams ("Spoonful"). Disraeli Gears featured Clapton's searing guitar lines, Bruce's soaring vocals and prominent, fluid bass playing, and Baker's powerful, polyrhythmic jazz-influenced drumming. Together, Cream's talents secured them as an influential power trio.

In 28 months, Cream had become a commercial success, selling millions of records and playing throughout the U.S. and Europe. They redefined the instrumentalist's role in rock and were one of the first blues-rock bands to emphasise musical virtuosity and lengthy jazz-style improvisation sessions. Their U.S. hit singles include "Sunshine of Your Love" (#5, 1968), "White Room" (#6, 1968) and "Crossroads" (#28, 1969) – a live version of Robert Johnson's "Cross Road Blues". Though Cream was hailed as one of the greatest groups of its day, and the adulation of Clapton as a guitar hero reached new heights, the supergroup was short-lived. Drug and alcohol use escalated tension between the three members, and conflicts between Bruce and Baker eventually led to Cream's demise. A strongly critical Rolling Stone review of a concert of the group's second headlining U.S. tour was another significant factor in the trio's demise, and it affected Clapton profoundly.^[21]

Cream's farewell album, Goodbye, featuring live performances recorded at The Forum, Los Angeles, 19 October 1968, was released shortly after Cream disbanded; it also featured the studio single "Badge", co-written by Clapton and George Harrison. Clapton met Harrison and became friends with him after the Beatles shared a bill with the Clapton-era Yardbirds at the London Palladium. The close friendship between Clapton and Harrison resulted in Clapton's playing on Harrison's "While My Guitar Gently Weeps" from the Beatles' White Album (1968). Harrison also released his solo debut album, Wonderwall Music, in 1968. It became the first of many Harrison solo records to feature Clapton on guitar. Clapton would go largely uncredited for his contributions to Harrison's albums due to contractual restraints. The pair would often play live together as each other's guest. A year after Harrison's death in 2001, Clapton helped organise a tribute concert, for which he was musical director.^[22]

Cream briefly reunited in 1993 to perform at the ceremony inducting them into the Rock and Roll Hall of Fame; a full reunion took place in May 2005, with Clapton, Bruce, and Baker playing four sold-out concerts at London's Royal Albert Hall,^[23] and three shows at New York's Madison Square Garden that October.^[24] Recordings from the London shows, Royal Albert Hall London May 2-3-5-6, 2005, were released on CD, LP, and DVD in September/December 2005.^[25]

Blind Faith and Delaney and Bonnie and Friends[link]

Clapton's next group, Blind Faith (1969), was composed of Cream drummer Ginger Baker, Steve Winwood of Traffic, and Ric Grech of Family, and yielded one LP and one arena-circuit tour. The supergroup debuted before 100,000 fans in London's Hyde Park on 7 June 1969. They performed several dates in Scandinavia and began a sold-out American tour in July before their only album was released. The LP Blind Faith consisted of just six songs, one of them a 15-minute jam entitled "Do What You Like". The album's jacket image of a topless pubescent girl was deemed controversial in the United States and was replaced by a photograph of the band. Blind Faith dissolved after less than seven months.

Clapton subsequently toured as a sideman for an act that had opened for Blind Faith, Delaney and Bonnie and Friends. He also played two dates as a member of The Plastic Ono Band that autumn, including a recorded performance at the Toronto Rock and Roll Revival in September 1969 released as the album Live Peace in Toronto 1969.^[26] On 15 December 1969 Clapton performed with John Lennon, George Harrison, and others as the Plastic Ono Band at a fundraiser for UNICEF in London.^[26]

Delaney Bramlett encouraged Clapton in his singing and writing. During the summer of 1969, Clapton and Bramlett contributed to the Music From Free Creek "supersession" project. Clapton, appearing as "King Cool" for contractual reasons, played with Dr. John on three songs, joined by Bramlett on two tracks.

Using the Bramletts' backing group and an all-star cast of session players (including Leon Russell and Stephen Stills), Clapton recorded his first solo album during two brief tour hiatuses, fittingly named Eric Clapton. Delaney Bramlett co-wrote six of the songs with Clapton,^[27] and Bonnie Bramlett co-wrote "Let It Rain".^[28] The album yielded the unexpected U.S. #18 hit, J. J. Cale's "After Midnight". Clapton went with Delaney and Bonnie from the stage to the studio with the Dominos to record George Harrison's All Things Must Pass in spring 1970. During this busy period, Clapton also recorded with other artists including Dr. John, Leon Russell, Plastic Ono Band, Billy Preston, and Ringo Starr.

1970s[link]

Derek and the Dominos[link]

	"Layla" noicon 27-second sample of the song "Layla", as performed by Derek and the Dominos
Problems listening to this file? See media help.

With the intention to counteract the "star" cult faction that had begun to form around him, Clapton assembled a new band composed of Delaney and Bonnie's former rhythm section, Bobby Whitlock as keyboardist and vocalist, Carl Radle as the bassist, and drummer Jim Gordon, with Clapton playing guitar. It was his intention to show that he need not fill a starring role, and functioned well as a member of an ensemble.^[29] Naming the band, "Eric Clapton and Friends" at first, the name "Derek and the Dominos" was a fluke. It occurred when the band's provisional name of "Del and the Dynamos" was misread as Derek and the Dominos.^[30] Clapton's biography states that Tony Ashton of Ashton, Gardner and Dyke told Clapton to call the band "Del and the Dominos", since "Del" was his nickname for Eric Clapton. Del and Eric were combined and the final name became "Derek and the Dominos".^[31]

Clapton's close friendship with George Harrison brought him into contact with Harrison's wife, Pattie Boyd, with whom he became deeply infatuated. When she spurned his advances, Clapton's unrequited affections prompted most of the material for the Dominos' album, Layla and Other Assorted Love Songs (1970). Heavily blues-influenced, the album features the twin lead guitars of Duane Allman and Clapton, with Allman's slide guitar as a key ingredient of the sound. Working at Criteria Studios in Miami with Atlantic Records producer Tom Dowd, who had worked with Clapton on Cream's Disraeli Gears, the band recorded a double album.

The album features the hit love song "Layla", inspired by the classical poet of Persian literature, Nizami Ganjavi's The Story of Layla and Majnun, a copy of which Ian Dallas had given to Clapton. The book moved Clapton profoundly, as it was the tale of a young man who fell hopelessly in love with a beautiful, unavailable woman and who went crazy because he could not marry her.^[32][33] The two parts of "Layla" were recorded in separate sessions: the opening guitar section was recorded first, and for the second section, laid down several months later, drummer Jim Gordon composed and played the piano part.^[31]

The Layla LP was actually recorded by a five-piece version of the group, thanks to the unforeseen inclusion of guitarist Duane Allman of The Allman Brothers Band. A few days into the Layla sessions, Dowd—who was also producing the Allmans—invited Clapton to an Allman Brothers outdoor concert in Miami. The two guitarists met first on stage, then played all night in the studio, and became friends. Duane first added his slide guitar to "Tell the Truth" and "Nobody Knows You When You're Down and Out". In four days, the five-piece Dominos recorded "Key to the Highway", "Have You Ever Loved a Woman" (a blues standard popularised by Freddie King and others), and "Why Does Love Got to be So Sad". In September, Duane briefly left the sessions for gigs with his own band, and the four-piece Dominos recorded "I Looked Away", "Bell Bottom Blues", and "Keep on Growing". Duane returned to record "I am Yours", "Anyday", and "It's Too Late". On 9 September, they recorded Hendrix's "Little Wing" and the title track. The following day, the final track, "It's Too Late", was recorded.^[34]

Eric Clapton in Barcelona, 1974

Tragedy dogged the group throughout its brief career. During the sessions, Clapton was devastated by news of the death of Jimi Hendrix; eight days previously the band had cut a cover of "Little Wing" as a tribute to Hendrix. On 17 September 1970, one day before Hendrix's death, Clapton had purchased a left-handed Fender Stratocaster that he had planned to give to Hendrix as a birthday gift. Adding to Clapton's woes, the Layla album received only lukewarm reviews upon release. The shaken group undertook a U.S. tour without Allman, who had returned to the Allman Brothers Band. Despite Clapton's later admission that the tour took place amidst a veritable blizzard of drugs and alcohol, it resulted in the live double album In Concert.^[35] The band had recorded several tracks for a second album in London during the spring of 1971 (five of which were released on the Eric Clapton box-set Crossroads), but the results were mediocre.

A second record was in the works when a clashing of egos took place and Clapton walked, thus disbanding the group. Allman was killed in a motorcycle accident on 29 October 1971. Although Radle would remain Clapton's bass player until the summer of 1979 (Radle died in May 1980 from the effects of alcohol and narcotics), it would be 2003 before Clapton and Whitlock appeared together again (Clapton guested on Whitlock's appearance on the Later with Jools Holland show). Another tragic footnote to the Dominos story was the fate of drummer Jim Gordon, who was an undiagnosed schizophrenic and years later murdered his mother during a psychotic episode. Gordon was confined to 16-years-to-life imprisonment, later being moved to a mental institution, where he remains today.^[17]

Solo career[link]

Clapton's career successes in the 1970s were in stark contrast with his personal life, which was troubled by romantic longings and drug and alcohol addiction.^[36] While suffering his (temporarily) unrequited and intense attraction to Pattie Boyd, he withdrew from recording and touring to isolation in his Surrey, England, residence. There he nursed his heroin addiction, which resulted in a career hiatus interrupted only by the Concert for Bangladesh in August 1971 (where he passed out on stage, was revived, and continued his performance).^[17] In January 1973, The Who's Pete Townshend organised a comeback concert for Clapton at London's Rainbow Theatre, aptly titled the "Rainbow Concert", to help Clapton kick his addiction. Clapton would return the favour by playing 'The Preacher' in Ken Russell's film version of The Who's Tommy in 1975; his appearance in the film (performing "Eyesight to the Blind") is notable as he is clearly wearing a fake beard in some shots, the result of deciding to shave off his real beard after the initial takes in an attempt to force the director to remove his earlier scene from the movie and leave the set.^[31]

Yvonne Elliman with Clapton promoting 461 Ocean Boulevard in 1975

In 1974, now partnered with Pattie (they would not actually marry until 1979) and no longer using heroin (although starting to drink heavily), Clapton put together a more low-key touring band that included Radle, Miami guitarist George Terry, keyboardist Dick Sims (who died in 2011 ^[37]), drummer Jamie Oldaker, and vocalists Yvonne Elliman and Marcy Levy (also known as Marcella Detroit). With this band Clapton recorded 461 Ocean Boulevard (1974), an album with an emphasis on more compact songs and fewer guitar solos; the cover version of "I Shot The Sheriff" was Clapton's first #1 hit and was important in bringing reggae and the music of Bob Marley to a wider audience. The 1975 album There's One in Every Crowd continued this trend. The album's original title, The World's Greatest Guitar Player (There's One In Every Crowd), was changed before pressing, as it was felt its ironic intention would be misunderstood. The band toured the world and subsequently released the 1975 live LP, E.C. Was Here.^[38] Clapton continued to release albums and toured regularly. Highlights of the period include No Reason to Cry (a collaboration with Bob Dylan and The Band); Slowhand, which featured "Wonderful Tonight" (another song inspired by Boyd);^[39] and a second J.J. Cale cover, "Cocaine". In 1976 he performed, alongside a string of notable guests, to pay tribute to the farewell performance of The Band, filmed in a Martin Scorsese documentary called the Last Waltz.

1980s[link]

In 1981 Clapton was invited by producer Martin Lewis to appear at the Amnesty International benefit The Secret Policeman's Other Ball. Clapton accepted the invitation and teamed up with Jeff Beck to perform a series of duets—reportedly their first-ever billed stage collaboration. Three of the performances were released on the album of the show, and one of the songs was featured in the film. The performances heralded a return to form and prominence for Clapton in the new decade. Many factors had influenced Clapton's comeback, including his "deepening commitment to Christianity", to which he had converted prior to his heroin addiction.^[40][41]

After an embarrassing fishing incident, Clapton finally called his manager and admitted he was an alcoholic. In January 1982 Roger and Clapton flew to Minneapolis – St. Paul; Clapton would be checked in at Hazelden Treatment Center, located in Center City, Minnesota. On the flight over, Clapton indulged in a large number of drinks, for fear he would never be able to drink again. Clapton is quoted as saying from his autobiography, "In the lowest moments of my life, the only reason I didn't commit suicide was that I knew I wouldn't be able to drink any more if I was dead. It was the only thing I thought was worth living for, and the idea that people were about to try and remove me from alcohol was so terrible that I drank and drank and drank, and they had to practically carry me into the clinic."^[42]

After being discharged, it was recommended by doctors of Hazelden that Clapton not partake in any activities that would act as triggers for his alcoholism or stress, until he was fully situated back at Hurtwood. A few months after his discharge, Clapton began working on his next album, against the Hazelden doctors' orders. Working with Tom Dowd, Clapton produced what he thought as his "most forced" album to date, Money and Cigarettes.

In 1984 he performed on Pink Floyd member Roger Waters' solo album, The Pros and Cons of Hitch Hiking, and went on tour with Waters following the release of the album. Since then Waters and Clapton have had a close relationship. In 2005 they performed together for the Tsunami Relief Fund. In 2006 they performed at the Highclere Castle, in aid of the Countryside Alliance, playing two set pieces of "Wish You Were Here" and "Comfortably Numb". Clapton, now a seasoned charity performer, played at the Live Aid concert on 13 July 1985.^[43] When offered a slot close to peak viewing hours, he was apparently flattered. As Clapton recovered from his addictions, his album output continued in the 1980s, including two produced with Phil Collins, 1985's Behind the Sun, which produced the hits "Forever Man" and "She's Waiting", and 1986's August.

Tina Turner and Eric Clapton at Wembley Arena, 18 June 1987

August was suffused with Collins's trademark drum and horn sound, and became Clapton's biggest seller in the UK to date, matching his highest chart position, number 3. The album's first track, the hit "It's In The Way That You Use It", was featured in the Tom Cruise – Paul Newman movie The Color of Money. The horn-peppered "Run" echoed Collins' "Sussudio" and rest of the producer's Genesis/solo output, while "Tearing Us Apart" (with Tina Turner) and the unimpressed "Miss You" echoed Clapton's angry sound. This rebound kicked off Clapton's two-year period of touring with Collins and their August collaborates, bassist Nathan East and keyboard player/songwriter Greg Phillinganes. While on tour for August, two concert videos were recorded of the four-man band, Eric Clapton Live from Montreux and Eric Clapton and Friends. Clapton later remade "After Midnight" as a single and a promotional track for the Michelob beer brand, which had also marketed earlier songs by Collins and Steve Winwood. Clapton won a British Academy Television Award for his collaboration with Michael Kamen on the score for the 1985 BBC Television thriller serial Edge of Darkness. In 1989, Clapton released Journeyman, an album which covered a wide range of styles including blues, jazz, soul and pop. Collaborators included George Harrison, Phil Collins, Daryl Hall, Chaka Khan, Mick Jones, David Sanborn and Robert Cray.

George Harrison and Clapton at the Prince's Trust Concert, Wembley Arena, 1987

In 1984, while still married to Pattie Boyd, Clapton began a year-long relationship with Yvonne Kelly. The two had a daughter, Ruth, who was born in January 1985, but her existence was kept a secret by her parents. She was not publicly revealed as his child until 1991.^[44] Boyd criticised Clapton because he had not revealed the child's existence.^[45]

At the 1987 Brit Awards in London, Clapton picked up the prize for Outstanding Contribution to Music.^[46] Hurricane Hugo hit Montserrat in 1989, and this resulted in the closure of Sir George Martin and John Burgess's recording studio AIR Montserrat, where Kelly was Managing Director. Kelly and Ruth moved back to England, and stories about Eric's secret daughter began as a result of newspaper articles published at the time.^[44] Clapton and Boyd divorced in 1988 following his affair with Italian model Lory Del Santo, who gave birth to their son, Conor, on 21 August 1986.^[47] Boyd was never able to conceive children, despite attempts at in vitro fertilisation.^[45][47] Their divorce was granted on grounds of "infidelity and unreasonable behaviour."^[45]

Clapton was known to date a host of beautiful women, including Krissy Wood (ex-wife of Ron Wood), actress Charlotte Martin, socialite Alice Ormsby-Gore, Paula Boyd (the younger sister of his future wife Pattie), singer Janis Joplin, singer Marianne Faithfull, rock muses Catherine James, Cyrinda Fox, and Geraldine Edwards, the inspiration for Penny Lane in Almost Famous, singer Rosanne Cash, the First Lady of France and former model Carla Bruni, and actresses Patsy Kensit, Sharon Stone, and Alicia Witt.^[48]

1990s[link]

The 1990s brought a series of 32 concerts to the Royal Albert Hall, such as the 24 Nights series of concerts that took place around January through February 1990, and February through March 1991. On 27 August 1990, fellow blues guitarist Stevie Ray Vaughan, who was touring with Clapton, and three members of their road crew were killed in a helicopter crash between concerts. Then, on 20 March 1991, Clapton's four-year-old son, Conor, died after falling from the 53rd-floor window of his mother's friend's New York City apartment at 117 East 57th Street. He landed on the roof of an adjacent four-story building. Clapton's grief was expressed in the song "Tears in Heaven", which was co-written by Will Jennings. At the 35th Grammy Awards, Clapton received six Grammy Awards for the single "Tears in Heaven" and his Unplugged album.^[49] The album reached number one on the Billboard 200, and has since been certified Diamond by the RIAA for selling over 10 million copies in the United States.^[50] On 9 September 1992, Clapton performed "Tears in Heaven" at the 1992 MTV Video Music Awards in Los Angeles, and won the award for Best Male Video.^[51][52]

In October 1992 Clapton was among the dozens of artists performing at Bob Dylan's 30th Anniversary Concert Celebration. Recorded at Madison Square Garden in New York City, the live two-disk CD/DVD captured a show full of celebrities performing classic Dylan songs, before ending with a few performances from Dylan himself. Despite the presence of 10 other guitarists on stage, including George Harrison, Neil Young, Roger McGuinn, Steve Cropper, Tom Petty, and Dylan, Clapton played the lead on a nearly 7-minute version of Dylan's "Knockin' on Heaven's Door" as part of the finale.

While Unplugged featured Clapton playing acoustic guitar, his 1994 album From the Cradle contained new versions of old blues standards, highlighted by his electric guitar playing.^[53] Clapton's 1996 recording of the Wayne Kirkpatrick/Gordon Kennedy/Tommy Sims tune "Change the World" (featured in the soundtrack of the movie Phenomenon) won the Grammy Award for Song of the Year in 1997, the same year he recorded Retail Therapy (an album of electronic music with Simon Climie under the pseudonym TDF). The following year, Clapton released the album Pilgrim, the first record featuring new material for almost a decade.^[41] Clapton finished the twentieth century with collaborations with Carlos Santana and B. B. King.

In 1996 Clapton had a relationship with singer/songwriter Sheryl Crow. They remain friends, and Clapton appeared as a guest on Crow's Central Park Concert. The duo performed a Cream hit single, "White Room". Later, Clapton and Crow performed an alternate version of "Tulsa Time" with other guitar legends at the Crossroads Guitar Festival in June 2007.

In 1998 Clapton, then 53, met 22-year-old administrative assistant Melia McEnery in Columbus, Ohio, at a party given for him after a performance. He quietly dated her for a year, and went public with the relationship in 1999. They married on 1 January 2002 at St Mary Magdalene church in Clapton's birthplace, Ripley. As of 2005 they have three daughters, Julie Rose (13 June 2001), Ella May (14 January 2003), and Sophie Belle (1 February 2005).

At the 41st Grammy Awards on 24 February 1999, Clapton received his third Grammy Award for Best Male Pop Vocal Performance, for his song "My Father's Eyes".^[54] In October 1999, the compilation album, Clapton Chronicles: The Best of Eric Clapton, was released, which contained a new song, "Blue Eyes Blue", that also appears in soundtrack for the film, Runaway Bride.^[55][56]

2000s[link]

Clapton performing at the TUI Arena of Hannover (Germany) on 2 April 2004

Following the release of the 2001 record Reptile, in June 2002, Clapton performed "Layla" and "While My Guitar Gently Weeps" at the Party at the Palace concert in the grounds of Buckingham Palace.^[57] On 29 November 2002, the Concert for George was held at the Royal Albert Hall, a tribute to George Harrison, who had died a year earlier of cancer.^[58] Clapton was a performer and the musical director. The concert featured Paul McCartney, Ringo Starr, Jeff Lynne, Tom Petty and the Heartbreakers, Ravi Shankar, Gary Brooker, Billy Preston, Joe Brown and Dhani Harrison.^[58] In 2004, Clapton released two albums of covers of songs by bluesman Robert Johnson, Me and Mr. Johnson and Sessions for Robert J. In 2004, Rolling Stone ranked Clapton #53 on their list of the "100 Greatest Artists of All Time".^[59]

Performance for Tsunami Relief Cardiff

On 22 January 2005, Clapton performed in the Tsunami Relief Concert held at the Millennium Stadium in Cardiff, in aid of the victims of the 2004 Indian Ocean earthquake. In May 2005 Eric Clapton, Jack Bruce, and Ginger Baker reunited as Cream for a series of concerts at the Royal Albert Hall in London. Concert recordings were released on CD and DVD. Later, Cream performed in New York at Madison Square Garden. Back Home, Clapton's first album of new original material in nearly five years, was released on Reprise Records on 30 August. In 2006 he invited Derek Trucks and Doyle Bramhall II to join his band for his 2006–2007 world tour. Trucks is the third member of the Allman Brothers Band to tour supporting Clapton, the second being pianist/keyboardist Chuck Leavell, who appeared on the MTV Unplugged album and the 24 Nights performances at the Royal Albert Hall theatre of London in 1990 and 1991, as well as Clapton's 1992 U.S. tour.

On 20 May 2006, Clapton performed with Queen drummer Roger Taylor and former Pink Floyd bassist/songwriter Roger Waters at the Highclere Castle, Hampshire, in support of the Countryside Alliance.^[60] On 13 August 2006, Clapton made a guest appearance at the Bob Dylan concert in Columbus, Ohio, playing guitar on three songs in Jimmie Vaughan's opening act.^[61] A collaboration with guitarist J. J. Cale, titled The Road to Escondido, was released on 7 November 2006, featuring Derek Trucks and Billy Preston. The 14-track CD was produced and recorded by the duo in August 2005 in California. The chemistry between Trucks and Clapton convinced him to invite The Derek Trucks Band to open for Clapton's set at his 2007 Crossroads Guitar Festival. Trucks remained on set afterward, performed with Clapton's band throughout his performances, and later embarked on a world tour with him.

The rights to Clapton's official memoirs, written by Christopher Simon Sykes and published in 2007, were sold at the 2005 Frankfurt Book Fair for US$4 million.^[62]

On 26 February 2008, it was reported that North Korean officials had invited Clapton to play a concert in the communist state.^[63] Clapton's management received the invitation and passed it on to the singer, who agreed in principle and suggested it take place sometime in 2009.^[64] Kristen Foster, a spokesperson, said, "Eric Clapton receives numerous offers to play in countries around the world," and "[t]here is no agreement whatsoever for him to play in North Korea."^[65]

Eric Clapton (fourth from left) and his band live in 2007

In 2007 Clapton learned more about his father, a Canadian soldier who left the UK after the war. Although Clapton's grandparents eventually told him the truth about his parentage, he only knew that his father's name was Edward Fryer. This was a source of disquiet for Clapton, as witnessed by his 1998 song "My Father's Eyes". A Montreal journalist named Michael Woloschuk researched Canadian Armed Forces service records and tracked down members of Fryer's family, and finally pieced together the story. He learned that Clapton's father was Edward Walter Fryer, born 21 March 1920, in Montreal and died 15 May 1985 in Newmarket, Ontario. Fryer was a musician (piano and saxophone) and a lifelong drifter who was married several times, had several children, and apparently never knew that he was the father of Eric Clapton.^[66] Clapton thanked Woloschuk in an encounter at Macdonald Cartier Airport, in Ottawa, Canada.^[67]

In February 2008 Clapton performed with his long-time friend Steve Winwood at Madison Square Garden and guested on his recorded single, "Dirty City", on Winwood's album Nine Lives. The two former Blind Faith bandmates met again for a series of 14 concerts throughout the United States in June 2009.

Clapton's 2008 Summer Tour began on 3 May at the Ford Amphitheatre, Tampa Bay, Florida, and then moved to Canada, Ireland, England, Norway, Iceland, Denmark, Poland, Germany, and Monaco. On 28 June 2008, he headlined Saturday night for Hard Rock Calling 2008 in London's Hyde Park (previously Hyde Park Calling) with support from Sheryl Crow and John Mayer.^[68][69] In September 2008 Clapton performed at a private charity fundraiser for The Countryside Alliance at Floridita in Soho, London, that included such guests as the London Mayor Boris Johnson.

Clapton performing with The Allman Brothers Band at the Beacon Theater

In March 2009, the Allman Brothers Band (amongst many notable guests) celebrated their 40th year, dedicating their string of concerts to the late Duane Allman on their annual run at the Beacon Theatre. Eric Clapton was one of the performers, with drummer Butch Trucks remarking that the performance was not the typical Allman Brothers experience, given the number and musical styles of the guests who were invited to perform. Songs like "In Memory of Elizabeth Reed" were punctuated with others, including "The Weight", with Levon Helm; Johnny Winter sitting in on Hendrix's "Red House"; and "Layla". On 4 May 2009 Clapton appeared as a featured guest at the Royal Albert Hall, playing "Further on Up the Road" with Joe Bonamassa.

Clapton was scheduled to be one of the performers at the Rock and Roll Hall of Fame's 25th anniversary concert in Madison Square Garden on 30 October 2009, but cancelled due to gallstone surgery.^[70] Van Morrison (who also cancelled)^[71] said in an interview that he and Clapton were to do a "couple of songs", but that they would do something else together at "some other stage of the game".^[72]

2010s[link]

Clapton performed a two-night show with Jeff Beck at London's O2 Arena on 13–14 February 2010.^[73] The two former Yardbirds extended their 2010 tour with stops at Madison Square Garden,^[74] the Air Canada Centre in Toronto, and the Bell Centre in Montreal.^[75] Clapton performed a series of concerts in 11 cities throughout the United States from 25 February to 13 March 2010, including Roger Daltrey as opening act. His third European tour with Steve Winwood began on 18 May and ended 13 June, including Tom Norris as opening act. He then began a short North American tour lasting from 26 June to 3 July, starting with his third Crossroads Guitar Festival on 26 June at Toyota Park in Bridgeview, Illinois. Clapton released a new studio album, Clapton, on 27 September 2010 in the United Kingdom and 28 September 2010 in the United States. On 17 November 2010, Clapton performed as guest on the Prince's Trust rock gala held at the Royal Albert Hall, supported by the house band for the evening, which included Jools Holland, Midge Ure and Mark King.^[76]

On 24 June 2011 Clapton was in concert with Pino Daniele in Cava de' Tirreni stadium, Italy, with an audience of 15,000 people before performing a series of concerts in South America from 6 to 16 October 2011. He spent the November and December 2011 touring Japan with Steve Winwood, playing 13 shows in various cities throughout the country. On 24 February 2012 Clapton, Keith Richards, Gary Clark Jr., Derek Trucks, Doyle Bramhall II, Kim Wilson and other artists performed together in the Howlin' For Hubert Tribute concert held at the Apollo Theater of NYC honoring blues guitarist Hubert Sumlin who died at age 80 in 4 December.