Nervilia 芋兰属
Nervilia is a genus of orchid with about 65 species widely distributed across most of sub-Saharan Africa (South Africa, southern Asia (Saudi Arabia, India, China, Japan, Indochina, Indonesia, etc.), Australia, and various islands of the Pacific and Indian Oceans. Six species occur in Australia (2 or 3 of these endemic), with 16 in India, 10 in China and 5 in South Africa.