Croomia

Croomia is a genus of primitive angiosperm herbs in the Stemonaceae family, first described as a genus in 1840.

Taxonomy
Once included in its own family, Croomiaceae, Croomia has also previously been included in Dioscoreaceae.

Subdivision
About six species.
 * Croomia heterosepala (Baker) Okuyama - Japan
 * Croomia hyugaensis Kadota & Mas.Saito - Kyushu
 * Croomia japonica Miq. - Anhui, Fujian, Jiangxi, Zhejiang, Chugoku, Kyushu
 * Croomia kinoshitae Kadota - Shikoku
 * Croomia pauciflora (Nutt.) Torr. - United States (FL GA AL LA)
 * Croomia saitoana Kadota - Kyushu

Distribution and habitat
Croomia is native to China, Japan, and the southeastern United States. The plants grow in moist, shady woods. Their small flowers are borne beneath the leaves.