Erect to prostrate, usually much-branched herb, sometimes woody at base, up to 40 cm high. Stem terete, set with short, curved hairs. Leaves obovate-oblong to lanceolate, 3-45 by 1-8 mm, subsessile, mucronate, with recurved margin, shortly hairy, usually l-nerved. Racemes usually supra-axillary, the free part (0.5—)3—5(—10) cm long. Bracts usually persistent, minute, ciliate. Flowers (2.5-)3-4.5(-5) mm long, yellow with green and partly red alae. Sepals lanceolate, acuminate and with a short mucro, cil-iolate, alae asymmetric, 5-nerved. Upper petals slightly longer than to ± as long as the keel, spathu-late, inside hairy in basal half; keel with 2 bundles of shortly incised appendages. Ovary ± orbicular, notched, ciliolate with crispate hairs; style strongly curved in apical part, subapically strongly reflexed with the stigmatic lobe inside. Capsule shorter than the alae, usually symmetric, broadly elliptic, 3-3.5 by 2.5-3 mm, notched, narrowly winged, the wings with short curved hairs only. Seeds ellipsoid, at micropylar side with an unequally 3-lobed aril, black, hairy.
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Annual herb, prostrate or erect with spreading or decumbent branches, up to 20 cm high; indumentum of curved hairs. Leaves oblanceolate, narrowly elliptic or narrowly oblong, 4–30 mm long, 2–8 mm wide; apex rounded or truncate, mucro c. 0.2 mm; petiole 0–1 mm long. Inflorescence supra-axillary, a raceme to 2 mm long, not exceeding the leaves. Pedicel to 0.5 mm long. Alae antrorse or perpendicular in fruit, herbaceous, ovate to lanceolate, falcate or dimidiate, 4.3–5.8 mm long, 2.0–2.4 mm wide, with curved hairs or glabrous. Corolla yellow (from dried material only); floral appendages fimbriate; upper petal c. 0.5 mm wide. Stamens terminate at stigma, monadelphous; staminal flap
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