Yoania
Yoania is a genus of flowering plants from the orchid family, Orchidaceae. It described in 1872 by Russian botanist Karl Maximovich and was named after Japanese polymath and botanist Udagawa Yōan.
Distribution
This genus is mainly distributed in Japan, but Y. japonica is also found in India, China, and Taiwan and Y. prainii is found in the Himalayas and in northern Vietnam.Species
Species recognized as of November 2020:| Image | Scientific name | Distribution |
| Yoania amagiensis Nakai & F.Maek, 1931 | Honshu, Kyushu | |
| Yoania flava K.Inoue & T.Yukawa, 2002 | Honshu | |
| Yoania japonica Maxim., 1873 | Assam, Fujian, Jiangxi, Taiwan, Japan | |
| Yoania pingbianensis Z.J.Liu, G.Q.Zhang & M.He Li, 2016 | Yunnan, Vietnam | |
| Yoania prainii King & Pantl.,1898 | Sikkim, Assam, northeastern India, Vietnam |
;
- Yoania aberrans Finet, 1900: synonym of Cymbidium macrorhizon Lindl., 1833
- Yoania australis Hatch, 1963: synonym of Danhatchia australis Garay & Christenson, 1995