Protea ( /ˈproʊtiːə/) is both the botanical name and the English common name of a genus of South African flowering plants, sometimes also called sugarbushes (Afrikaans: suikerbos).
The genus Protea was named in 1735 by Carl Linnaeus after the Greek god Proteus, who could change his form at will, because proteas have such a wide variety of forms. Linnaeus's genus was formed by merging a number of genera previously published by Herman Boerhaave, although precisely which of Boerhaave's genera were included in Linnaeus's Protea varied with each of Linnaeus's publications.
The Proteaceae family to which proteas belong is an ancient one. Its ancestors grew in Gondwana, 300 million years ago. Proteaceae is divided into two subfamilies: the Proteoideae, best represented in southern Africa, and the Grevilleoideae, concentrated in Australia and South America and the other smaller segments of Gondwana that are now part of eastern Asia. Africa shares only one genus with Madagascar, whereas South America and Australia share many common genera — this indicates they separated from Africa before they separated from each other.