xx Clematis villosa DC. [ Clematopsis kirkii (Oliver) Hutch.]
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xx Clematis villosa DC. [ Clematis kirkii Oliver] [Ranunculaceae]
I.B. Pole-Evans, E.P. Phillips, R.A. Dyer, L.E. Codd, Fl. Pl. S. Afr., vol. 26 : t. 1026 (1947) [Collett]