Pterygodium is a genus of flowering plants from the orchid family, Orchidaceae. It found primarily in southern Africa (South Africa, Lesotho, Swaziland) but one species is endemic to Tanzania.Species accepted as of June 2014:Pterygodium acutifolium Lindl. - Cape ProvincePterygodium alatum (Thunb.) Sw. - Cape ProvincePterygodium caffrum (L.) Sw. - Cape ProvincePterygodium catholicum (L.) Sw. - Cape ProvincePterygodium cleistogamum (Bolus) Schltr.