Shrub or small tree 1–5 m. tall, almost or quite free from normal white hairs, the branches often bending downwards.. Twigs reddish-purple, glabrous or with viscid swollen-based hairs.. Leaves rarely in tufts; stipules ovate or lanceolate-acuminate with subulate tips, up to 4(–7) mm. long and 1.5 mm. broad; rhachis glabrous or more or less glandular-setose, 3–7(–12) cm. long, including a petiole of 4–7 mm.; leaflets 6–17(–24), oblong-elliptic, the larger ones over 10 mm. long and 8 mm. wide, sometimes up to 25(–50) mm. long and 11(–22) mm. wide, somewhat narrowed at the base, shortly mucronate, flat at the margin, glabrous; midrib prominent beneath, whitish; lateral veins very narrow, slightly darkened beneath.. Racemes viscid glandular-setose, the rhachis 5–50(–90) mm. long, 2–13-flowered but usually not more than 2-fruited; bracts brown, scarious, ovate-acuminate, often 3-pointed, 1.5–2 mm. long, setose at the margin; pedicels 4–9(–20) mm. long; bracteoles 1–2 mm. below receptacle, ovate-acuminate, 2–3 mm. long.. Calyx glabrous or with a few large swollen-based hairs; receptacle-cup ± 3 mm. deep, 4–5 mm. long and 3 mm. wide; tube ± 2.5 mm. deep; upper lobes ± 3–4 mm. long; lateral lobes lanceolate, curved upwards, acute, 3.5–5 mm. long; lower lobe lanceolate, boat-shaped, very acute, 5–7 mm. long.. Corolla caducous; standard yellow, red veined, the claw 2 mm. long, blade ovate, 5–9 mm. long, 5–8 mm. wide, with 2 thick more or less horizontal arched shelf-like callous protuberances at the base; wings pale yellow, faintly red veined, the claw 2–3.5 mm. long, blade obovate, auricled above at the base, 6–8 mm. long, 4–6.5 mm. wide; keel greenish, faintly red veined, the claw 3–4 mm. long, blade 7–12 mm. long including a basal auricle 1 mm. long, 2 mm. wide at the base, 9–12 mm. near the apex which points upwards.. Stamens (10), (5) + (5) or less often 1 + (9).. Disc cylindrical, ± 1 mm. deep.. Ovary 5–11-ovulate, with swollen-based hairs all over or (outside Flora area) only along margins or glabrous, 8–10 mm. long including the glabrous stipe which is 1–2 mm. long; style 6–11 mm., curved through 90° near the base.. Fruit dark blackish-green, with a stipe 3–8 mm. long, longitudinally ribbed, glabrous (not in Flora area) to covered with curved prickles; segments 10–13 mm. long and, excluding the prickles, 5–6 mm. wide and 3 mm. thick.
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Leaves sometimes fasciculate; leaflets 6–17, 0.6–5 × 0.4–2.2 cm, elliptic or oblong-elliptic, shortly mucronate, somewhat narrowed to the base, the margins flat, glabrous; petiole 4–7 mm long; rhachis 2.5–6.5 cm long; stipules up to 4 × 1.5 mm, ovate or lanceolate, acuminate with subulate tips.
Racemes glandular-setose, sticky, 2–13-flowered, 0.5–7 cm long; peduncles 0.5–2 cm long; pedicels 3–9 mm long; bracts brown, scarious, 1.5–2 mm long, ovate, acuminate or 3-pointed, setose on the margins; bracteoles 1–2 mm below the receptacle, 2–3 mm long, ovate-acuminate.
Calyx glabrous or with a few swollen-based hairs; receptacle cup (hypanthium) 3 mm long; calyx tube c. 2.5 mm long, the upper lobes c. 4 mm long, lateral lobes 4.5–5 mm long, triangular or lanceolate, and lower lobe 6–7 mm long, very acute, lanceolate-boat-shaped.
Fruit dark blackish-green, longitudinally ribbed; stipe 3–8 mm long; articles 9–20 × 5–6 mm, 3 mm thick, glabrous or covered with backwardly-curved prickles 0.5–1.5 mm long.
Shrub, scrambler or small tree 1–5 m tall, mostly devoid of white hairs; branchlets reddish-purple, glabrous or with viscid swollen-based hairs.
Corolla deciduous, 9–16 mm long; standard yellow, red-veined, or dark purple-red almost black, ovate, 7–9 × 6–8 mm.
Ovary 5–8-ovulate, glabrous or with swollen-based hairs on only the sutures or all over the faces also.
Stamens monadelphous or diadelphous.
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