Polystachya pubescens is a compact and cheerful species from South Africa , Swaziland and Eastern Zimbabwe ( link to a distribution map). While it is common species in South Africa, it is either rare or extinct in Zimbabwe ( Flora of Zimbabwe ). In South Africa, it occurs in Eastern Cape , KwaZulu-Natal , Limpopo , Mpumalanga according to this South African Biodiversity Institute (SANBI) site . This is the summer rain fall region, and the plants experience a prolonged dry season during the cooler winter months (Stewart and Hennessy 1981). The genus Polystachya is a moderately large genus with approximately 250 species. It belongs to the subtribe Polystachyinae, which is a part of the tribe Vandeae, containing Angraecum and Aerangis in addition to Vanda , Aerides , Phalaenopsis , Thrixspermum etc. This genus is somewhat unique since it shows pan-tropical distribution (i.e. occurs in the tropics of Africa, Asia, and Americas). Within Orchid families with many genera,
Plants, Orchids, and Life in North