The labellum is white, circular, with a length of 6–7 millimeters and width of 3–4 millimeters, the tip 3 cracks, the base pastes the tight pistil column full terminal, has a pair of pulp callus, in the callus connection perianth tube.

It is found in Nepal, Bhutan, India, Japan (Hokkaido, Honshu, Shikoku, Kyuushu[3]), Korea, Siberia, Taiwan, and China (in the provinces of Jilin, Liaoning, Inner Mongolia, Hebei, Shanxi, Shanxi, Gansu, Jiangsu, Anhui, Zhejiang, Jiangxi, Henan, Hunan, Hubei, Sichuan, Guizhou, Yunnan, and Tibet).

[8] The herb, specifically the rhizome, is used in traditional Chinese medicine and Sichuan cuisine as tian-ma.

[9] It is one of the three orchids listed in the earliest known Chinese Materia Medica (Shennon bencaojing) (c. 100 AD).

The Chinese Pharmacopoeia requires medicinal rhizomes to contain, at minimum, 0.25% gastrodin + gastrodigenin by dry weight.