Genus of about 10 species of deciduous, terrestrial orchids from cool to temperate regions of China, Taiwan, and Japan. They have short rhisomes that develop corm-like pseudobulbs, partially underground. Each pseudobulb produces 3-4 linear to obovate, folded leaves. Upright, terminal racemes of up to 12 bell-shaped flowers are borne from spring to early summer. Nice plant for a cool greenhouse or for alpine house.