Amsinckia retrorsa (Boraginaceae: Boraginoideae: Eritrichieae) Image by Dr. Alexey Yakovlev Biedouw River Valley, IVO Enjo Nature Farm, Cederberg, Western cape, South Africa The genus Amsinckia comprises ± 15 species, all native to the western United States, with California the centre of diversity. In southern Africa only A. retrorsa is, most probably introduced by means … [Read more...] about Amsinckia retrorsa (Boraginaceae: Boraginoideae: Eritrichieae)