Noun
(botany) Any plant in the genus Stemona (formerly known as Roxburghia)
(traditional Chinese medicine) The species used in traditional Chinese medicine under the name 百部 (bǎibù)/百步 (bǎibù), including Stemona japonica, Stemona sessilifolia and Stemona tuberosa (perhaps also Stemona parviflora).
Source: en.wiktionary.org