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Chinese Plant Names | Family List | Dioscoreaceae | Dioscorea

4. Dioscorea sect. Shannicorea Prain & Burkill, J. Proc. Asiat. Soc. Bengal. 10: 7. 1914.

顶生翅组 ding sheng chi zu

Description from Flora of China

Rootstock of vertical, annual to biennial tubers. Stem twining to left, often pubescent. Bulblets absent. Leaves alternate, simple; leaf blade reniform to ovate, papery, margin entire. Male inflorescence a spikelike thyrse. Flowers in cymules, pedicellate; perianth campanulate, cupular, or saucer-shaped, lobes connate at base; stamens 6, inserted at base of perianth lobes or in throat of tube, anthers dorsifixed, introrse. Female inflorescences solitary or 2 or more together. Capsule usually reflexed at maturity, longer than wide; wings often undulate. Seeds inserted near base of capsule; wing pointing toward capsule apex.

About eight species: Cambodia, China, Laos, Myanmar, Thailand, Vietnam; seven species (four endemic) in China.


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