Tsaiorchis keiskeoides  Tsaiorchis keiskeoides is a species of flowering plant in the family Orchidaceae, native to northern Vietnam. The species was first described in 1931 by François Gagnepain, as "Habenaria keiskeoides". It was transferred to the genus "Amitostigma" in 1985. A molecular phylogenetic study in 2014 treated "Habenaria keiskoides" as synonymous with "Tsaiorchis neottianthoides". Although "Tsaiorchis" was shown to be close to some other genera, including "Ponerorchis" when expanded to include "Amitostigma", it was regarded as sufficiently distinct to be maintained as a separate genus. Sources such as the World Checklist of Selected Plant Families treat "Tsaiorchis keiskeoides" as a distinct species from "Tsaiorchis neottianthoides".