硬皮豆属 ying pi dou shu

Authors: Dezhao Chen, Prof. Dianxiang Zhang & Mats Thulin

Dolichos sect. Macrotyloma Wight & Arnott, Prodr. Fl. Ind. Orient. 248. 1834.

Climbing, prostrate or erect herbs. Leaves pinnately 3-foliolate or sometimes 1-foliolate; stipules basifixed; stipels present. Flowers usually in axillary clusters or pseudoracemes. Calyx campanulate, 4- or 5-lobed; upper 2 lobes ± connate. Corolla yellow to light yellowish green, rarely becoming reddish, exserted, glabrous; standard orbicular or elliptic, usually with auricles and 2 long, linear, flat appendages; wings narrow; keel not twisted. Stamens diadelphous; anthers uniform. Ovary 3-13-ovuled; style slender, not thickened upward, bearded around stigma; stigma terminal, capitate. Legumes straight or recurved, linear or linear-oblong, com­pressed, not septate. Seeds compressed; hilum short, central.

About 25 species: Africa, Asia; one species in China.

Lower Taxon

• Macrotyloma uniflorum (Lamarck) Verdcourt