... Habenaria praestans var. praestans are examples of orchids with bitter tubers. Due to over- collection, in the areas studied, over a short period, populations of the sweet species were overtaken by the bitter species (Challe and Struik ...
Sebsebe Demissew, Phillip Cribb, Finn Rasmussen. Habenaria praestans Habitat and distribution 21. H. praestans Rendle The specific epithet ' praestans ' refers to the fine " pre- eminent " flowers . Alfred Rendle described it in 1895 ...