瓜儿豆属 gua er dou shu

Authors: Hang Sun & Brian D. Schrire

Cordaea Sprengel.

Herbs, annual, with appressed medifixed (T-shaped) trichomes. Stipules subulate or linear. Leaves 3-foliolate [or simple or im­paripinnate]; leaflet blades on both surfaces or only abaxially with appressed white medifixed trichomes, margin serrate [or entire or parted]. Inflorescence axillary, racemose; peduncle present or absent. Calyx 5-toothed, most abaxial one longest. Corolla yellowish, yellow, or pink; keel not curled, ± bursiform, spur short or absent. Stamens 10, monadelphous; filaments connate into a tube, base not squamate; anthers with rigid point at apex. Ovary sessile. Legume nearly 4-angled, flattened, apex tapered to a beak. Seeds cubic or nearly so, surface slightly tubercular bulged.

Four species: tropical Africa and S Asia; one species (introduced) in China.

Lower Taxon

• Cyamopsis tetragonoloba (Linnaeus) Taubert