Purple African Thistle

Berkheya purpurea (purple berkheya; syn. Stobaea purpurea DC.) is a perennial member of the family Asteraceae of flowering plants. Like most members of its genus, Berkheya, it is native to southern Africa.

References

• Pink, A. (2004). Gardening for the Million. Project Gutenberg Literary Archive Foundation.
• Karis, Per Ola (2006). "Morphological data indicates two major clades of the subtribe Gorteriinae (Asteraceae-Arctotideae)". Cladistics. Blackwell Publishing. 22 (3): 199–221. doi:10.1111/j.1096-0031.2006.00109.x.