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Annual erect or straggling herb ± 30 cm. long.. Stems at first pilose, later glabrescent.. Leaves 4-foliolate; leaflets obovate or elliptic, 1–7 cm. long, 0.7–3.2 cm. wide, rounded or emarginate and mucronate at the apex, narrowly rounded to the base, glabrous, or sparsely pilose beneath, ciliate; free part of petiole 1.5–7 cm. long; petiolules 1–2 mm. long; stipules 1.5– 4 cm. long; free part linear-lanceolate, very acute, 0.6–3.2 cm. long, ciliate.. Flowers axillary, apparently solitary and stalked; primary bracts ovate-lanceolate, 1–1.4 cm. long, 4–5 mm. wide, biapiculate; secondary bracts similar but bifid.. Receptacle 0.2–4 cm. long, pilose.. Corolla yellow, mostly with red nerves, 0.7–1.3 cm. long.. Stamens 8–9.. Pods 2–6 cm. long, 1–1.5 cm. wide, the gynophore becoming 1–20 cm. long.. Seeds irregularly ovoid, 1–2 cm. long and ± two-thirds the length in diameter.. Fig. 63, p. 441.
Leaves 4-foliolate; leaflets 1–7 × 0.7–3.2 cm, obovate or elliptic, rounded or emarginate and mucronate at the apex, narrowly rounded to the base, glabrous, or sparsely pilose beneath, ciliate; free part of petiole 1.5–7 cm long; petiolules 1–2 mm long; stipules 1.5–4 cm long, free part 0.6–3.2 cm long, linear-lanceolate, very acute, ciliate.
Stem soon decumbent; lfls oblong-obovate to obovate, 3–6 cm; fls in the lower axils; standard orbicular, 12–16 mm; pedicel elongating and curved down after anthesis, pushing the fr into the soil; 2n=40. Native of S. Amer., cult. in se. U.S. and occasionally escaped along our s. border. Summer.
Erect or prostrate annual or perennial herb. Leaves paripinnately 4-foliolate, prominently veined. Pods oblong or sausage-shaped, 20-60 mm long with gyno-phore 10-200 mm long. Flowers yellow.
Flowers axillary, apparently solitary and stalked; primary bracts 10–14 × 4–5 mm, ovate-lanceolate, biapiculate; secondary bracts similar but 2-fid.
Seeds 1–2 cm long and c. two-thirds the length in diameter, irregularly ovoid.
Fruit 2–6 × 1–1.5 cm, the gynophore becoming 1–20 cm long.
Corolla yellow, usually with red nerves, 7–13 mm long.
Annual, erect or straggling herb c. 30 cm long.
Stems at first pilose, later glabrescent.
Receptacle 0.2–4 cm long, pilose.
Stamens 8–9.
