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Annual herb, up to 0.1 m high; stems prostrate. Leaves pinnately trifoliolate. Stipules adnate to petioles. Flowers in leaf axils, solitary and sessile; bracts minute. Calyx with campanulate tube; lobes ovate, acuminate, ± as long as tube. Petals: standard sessile or clawed; wings oblong, eared, clawed; keel shorter than wings, planoconvex, clawed. Stamens diadelphous; anthers uniform. Ovary sessile or shortly stalked, few-to many-ovuled; style with terminal stigma. Flowering time Oct.? Pod a falcate legume with strigose valves, nodiform, dehiscent.
Annual herb. Stems decumbent; branched from base, up to 300 mm long; often with strong smell when crushed. Leaves with obtriangular leaflets, toothed in upper part, upper surface glabrous, lower surface sparsely pubescent. Flowers: small, yellow, 2-7-fasciculate, subumbellate, sessile or subsessile; calyx campanulate, sparsely pubescent, teeth equalling or exceeding tube; Mar. Pods torulose and plicate, 7-10 x 1.5-2.0 mm.
Mat-forming, softly hairy, aromatic herb, up to 0.3 m across. Leaves 3-foliate, on slender pedicels, leaflets obovate, with serrated margins, terminal leaflet 4-7 mm long. Flowers in axillary clusters, yellow. Pod oblong, undulate, thick-rimmed, indehiscent.
An annual herb. It lies along the ground. The leaflets are 4-14 mm long. There are teeth along the edge. The fruit are 5-10 mm long and narrow and curved. There are 2-5 seeds.
