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Aulax is a South African Proteaceae genus of just three species of evergreen shrubs commonly known as featherbushes. It is unusual among the many South African Proteaceae in having male and female flowers on separate plants. The bushes have fine needle-like foliage. In spring and summer female plants produce funnel-shaped Leucospermum-like flower heads that develop into seed cones. The catkin-like male flowers are yellow. Aulax is part of an ancient plant family, the Proteaceae, which had already divided into two subfamilies, the Proteoideae and the Grevilleoideae, before the break-up of the Gondwanaland continent about 140 million years ago. Both these subfamilies occur mainly in the Southern Hemisphere. In southern Africa there are about 360 species, of which more than 330 species are endemic to the Cape Floral Kingdom, a relatively tiny portion of South Africa between Nieuwoudtville in the northwest and Grahamstown in the east. The extreme diversity of growth habits, flower forms and colours prompted the botanist Linnaeus to name this family after the Greek god Proteus, who could change his shape at will. Other well-known genera of the Proteaceae are Leucospermum with brightly coloured pincushion flowers, Protea with some of the most spectacular flowers imaginable, Leucadendron with decorative woody cones and Serruria, of which Serruria florida, the blushing bride, with its beautful pale pink flowers is the most well-known, Spatalla and Telopea with its unique bright flowers.
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