Tsaiorchis

Tsaiorchis is a genus of flowering plants in the family Orchidaceae.

Tsaiorchis
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Orchidaceae
Subfamily:	Orchidoideae
Subtribe:	Orchidinae
Genus:	Tsaiorchis T.Tang & F.T.Wang[1]
Species
See text.

Taxonomy

Tsaiorchis is placed in the orchid subfamily Orchidoideae, tribe Orchideae, subtribe Orchidineae. The relationship between Tsaiorchis and the rest of the subtribe is as shown in the cladogram below.^[2]

Orchidinae	Sirindhornia Ponerorchis Hemipilia Tsaiorchis all other genera

Although Tsaiorchis was shown to be sister to an expanded genus Hemipilia, the two have significant differences. Hemipilia grows from tubers, Tsaiorchis has horizontally extending rhizomes. The detailed structure of the flowers is also different.^[2]

Species

Tsaiorchis contains the following species:^[3]

• Tsaiorchis neottianthoides T.Tang & F.T.Wang
• Tsaiorchis keiskeoides (Gagnep.) X.H.Jin, Schuit. & W.T.Jin