Ponerorchis basifoliata

Ponerorchis basifoliata is a species of flowering plant in the family Orchidaceae, native to south-east China (south-east Sichuan, north Yunnan).
Taxonomy.
The species was first described in 1902 by Achille Eugène Finet, as "Peristylus tetralobus" f. "basifoliatus". It was later raised to a species and transferred successively to the genus "Orchis" and then to the genus "Amitostigma". A molecular phylogenetic study in 2014 found that species of "Amitostigma", "Neottianthe" and "Ponerorchis" were mixed together in a single clade, making none of the three genera monophyletic as then circumscribed. "Amitostigma" and "Neottianthe" were subsumed into "Ponerorchis", with "Amitostigma basifoliatum" becoming "Ponerorchis basifoliata".