Cleome is a genus of flowering plants in the family Cleomaceae. Previously it had been placed in family Capparaceae, until DNA studies found the Cleomaceae genera to be more closely related to Brassicaceae than Capparaceae. The APG II system[1] allows for Cleome and the other members of Cleomaceae to be included in Brassicaceae. The genus sensu stricto includes about 170 species of herbaceous annual or perennial plants and shrubs.[2] The genus has a subcosmopolitan distribution throughout the tropical and warm temperate regions of the world.[2] However a recent DNA study failed to separate Cleome, Podandrogyne and Polanisia from each other, so some taxonomists have abandoned the last two of these genera, treating them as part of Cleome sensu lato; in this case Cleome contains about 275 species, the vast majority of the Cleomaceae. As a genus it contains species which show a developmental progression from C3 photosynthesis to C4 photosynthesis. This combined with its being a Brassicaceae (and therefore closely related to the model plant species Arabidopsis thaliana) make it an ideal genus in which to study how C4 photosynthesis occurs and how it evolved. Morphological differences that demonstrate the transition from C3 to C4 include C3 species having more veins and larger bundle sheath cells. There are also proteins present in species such as Cleome gynandra which are needed for C4 photosynthesis.[3] Species of Cleome are commonly known as spider flowers, spider plants, spider weeds sharing what i seen today with you. if you have some time please leave a comment below. and Please Subscribe to my channel and thank you very much for watching my videos.. pictures of Griffith IN here http://christopherphoto.blogspot.com Visit Griffith Indiana's Nature on facebook http://www.facebook.com/GriffithIndianasNaturePhotos join me on Google+ http://plus.google.com/112815794394767726853 Join me on Twitter http://twitter.com/griffithindiana

• published: 22 Aug 2013
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