| Orchidaceae | |
Yoania aberrans
| Finet | Bull. Soc. Bot. France 47: 274 | |
| Orchidaceae | |
Yoania amagiensis
| Nakai & Maek. | Proc. Imp. Acad. Tokyo 7: 319 | 1931 |
| Orchidaceae | |
Yoania australis
| Hatch | Trans. Roy. Soc. New Zealand, Bot. 2: 185 | 1963 |
| Orchidaceae | |
Yoania flava
| K.Inoue & T.Yukawa | Acta Phytotax. Geobot. 53: 108 | 2002 |
| Orchidaceae | ! |
Yoania japonica
| Maxim. | Bull. Acad. Imp. Sci. Saint-Petersbourg, sér. 3 18: 68–69 | 1872 |
| Orchidaceae | |
Yoania prainii
| King & Prantl | Ann. Roy. Bot. Gard. (Calcutta) 8: 175 | 1898 |
| Orchidaceae | |
Yoania squamipes
| (Fukuy.) Masam. | J. Geobot. 21(3): 10 | 1974 |