Cremastra

Cremastra is a genus of flowering plants from the orchid family, Orchidaceae. It contains 4 currently recognized species (as of May 2014), native to China, Japan, Korea, Thailand, the Himalayas, and the Russian Far East.^[1][2]

1. Cremastra aphylla T.Yukawa - Japan
2. Cremastra appendiculata (D.Don) Makino
   1. Cremastra appendiculata var. appendiculata - Taiwan, Tibet, Yunnan, Bhutan, Assam, Nepal, Japan, Korea, Thailand, Vietnam
   2. Cremastra appendiculata var. variabilis (Blume) I.D.Lund - Kuril, Sakhalin, Japan, Korea, Thailand, Vietnam, Anhui, Chongqing, Gansu, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Shanxi, Sichuan, Zhejiang
   3. cremappendicula var alba
3. Cremastra guizhouensis Q.H.Chen & S.C.Chen - Guizhou
4. Cremastra unguiculata (Finet) Finet - Jiangxi, Korea, Japan