Suberect, straggling or more or less climbing annual herb 15–25 cm. long.. Stems slender, angular, much branched, sparsely hairy or more or less glabrous.. Leaves 4–6-foliolate; leaflets narrowly oblong or linear, 0·4–14 (–2·3) cm. long, 1–4 mm. wide, acute or rounded and usually shortly apiculate at the apex, rounded or cuneate at the base, glabrous to thinly hairy; petiole very short or obsolete; rhachis produced into a short awn or slender unbranched tendril; stipules semisagittate or ovate-lanceolate, 1–2 mm. long.. Inflorescence 1–2-flowered (but mostly flowers solitary); peduncle filiform, (0·8–)1–4 cm. long; bract-like awn minute or absent; pedicel 1–2 mm. long.. Calyx glabrescent or hairy; tube 1·5 mm. long; lobes linear-subulate, 2–3 mm. long.. Corolla pale to bright blue; standard rounded, ± 3 mm. in diameter.. Pods oblong, very compressed, (6–)7–9 mm. long, (2·5–)3·5–4 mm. wide, finely puberulous to adpressed pubescent or rarely glabrescent save for ciliate margins.. Seeds black and dark brown mottled, more or less circular in outline, compressed, 2–2·5 mm. in diameter, 1·5 mm. thick.. Fig. 154.
Can be grown by seedlings. Seeds needs soaking.
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