罗顿豆属 luo dun dou shu

Authors: Zhi Wei, Roger M. Polhill & Michael G. Gilbert

Ononis sect. Lotononis Candolle, Prodr. 2: 166. 1825.

Herbs [or shrublets], annual or perennial. Stipules distinct. Leaves digitately 3-foliolate, usually petiolate. Inflorescences leaf-opposed, umbellate [or racemose], long pedunculate. Calyx cuplike, most abaxial tooth narrowly triangular and longest but other 4 teeth ± joined in pairs. Corolla standard ovate or obovate, glabrous, claw short; wings sometimes much shorter than standard; keel rounded at apex. Stamens 10, connate into a dorsally split sheath; anthers dimorphic, 4 longer and basifixed, 6 shorter and dorsifixed. Ovary sessile; ovules many; style incurved; stigma terminal. Legume subsessile, slightly inflated, usually many seeded. Seeds with­out an aril; funicle threadlike.

About 100 species: Africa, S Asia, S Europe; one species (introduced) in China.

Lower Taxon

• Lotononis bainesii Baker