| Thismiaceae | |
Oxygyne confusa
| E. Bidault, V. Merckx & Byng | Global Fl. 4: 55 | 2018 |
| Thismiaceae | |
Oxygyne hyodoi
| C.Abe & Akas. | J. Jap. Bot. 64: 161 | 1989 |
| Thismiaceae | |
Oxygyne shinzatoi
| (Hatus.) C.Abe & Akas. | J. Jap. Bot. 64: 163 | 1989 |
| Thismiaceae | |
Oxygyne triandra
| Schltr. | Bot. Jahrb. Syst. 38: 140 | 1906 |
| Thismiaceae | |
Oxygyne yamashitae
| Yahara & Tsukaya | Acta Phytotax. Geobot. 59: 99 | 2008 |