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Scrambling herb, sometimes prostrate. Stems twining, up to 1 m long, not striate-ribbed. Leaflets slightly or distinctly 3-lobed, 15-90 x 20-90 mm, mucrons absent, sparsely covered with silky white hairs on both sides; petiole 11-70 mm long; stipules ovate-lanceolate, 3-10 mm long. Flowers in leaf axils, peduncles shorter than the petiole, without warts, 15-45 mm long, with 2 or 3 flowers; flowers 10-15 mm long; bracts filiform, 4-10 mm long; bracteoles ovate-lanceolate, 1-2 mm long. Calyx sparingly pubescent, with equal lips, upper lip 36 mm long, lower lip 3-7 mm long, carinal lobe length equal to lateral ones. Corolla pinkish-red; standard broadly obovate, 8-12(-15) x 9-12 mm, claw 1-3 mm long; wings obovate, deep purplish pink, 10-15 x 5-8 mm, claw 2-3 mm long; keel shorter than wings, paler or white, 10-12 x 3-5 mm, claw 23 mm long. Ovary linear-oblong, 6 to 8-ovuled, 5-8 mm long. Fruit straight or crescent-shaped, 25-95 x 6-12 mm, glabrescent, not warty along the margins, 4 to 6(-8)-seeded. Seeds brown or reddish-brown speckled black, reniform.
Twining herbs. Stems slender, glabrous or subglabrous. Leaves pinnately 3-foliolate; stipules ovate, ca. 3 mm, veins conspicuous; petiole 2-3 cm; stipels linear; leaflets rhombic or ovate-rhombic, 2-6 × 2-4.5 cm, glabrous or almost so on both surfaces, base broad and obtuse, apex acute or acuminate. Racemes axillary, slender, 1-4-flowered; peduncles equal to or longer than petiole. Bracts and bracteoles with conspicuous veins. Calyx broadly campanulate, ca. 3 mm, glabrous; teeth triangular. Corolla white, 10-20 mm; standard orbicular, base with 2 triangular appendages, without auricles; wings obovate, slightly longer than standard; keel base truncate, clawed. Ovary sessile. Legumes linear-oblong, ca. 6 × 0.8 cm, slightly curved, compressed. Seeds 6 or 7. Fl. Oct-Mar.
Perennial, climbing herb from a woody rootstock, 0.5-1.0 m high; stems ± appressed puberulous or with spreading hairs. Leaflets often with light middle vein, widely ovate-rhomboid to lanceolate, laterals often oblique, 15-90 mm long, rounded to acuminate at apex, rounded at base, ± pubescent or glabrescent on both surfaces. Inflorescences axillary, 2-or 3-flowered; peduncles 5-43 mm long. Calyx sparsely pubescent; tube 2.0-3.5 mm long; lobes triangular, short. Petals: standard red-brown or pink to greenish, often darker veined; wings deep purple or pink; keel whitish. Style flattened; stigma minute, terminal, penicillate. Pod oblong curved.
Leaves pinnately 3-foliolate; leaflets 1.5–9 × 2–9 cm, broadly ovate-rhombic or ovate, sometimes slightly to distinctly 3-lobed, rounded to acuminate at the apex, rounded at the base, occasionally paler around the midvein, densely to sparsely pubescent or glabrescent on both surfaces, 3-veined from the base; petiole 1.1–7 cm long; rhachis 2–14 mm long; petiolules 1–5 mm long; stipules 3–10 mm long, ovate-lanceolate or elliptic, mostly acute, 5–7-striate, erect or reflexed, persistent; stipels minute.
A bean plant. It is a twining herb. It keeps growing from year to year from root tubers. The leaves are compound with 3 leaflets. The leaf stalks are 2-3 cm long. The leaflets are 4 sided and 2-6 cm long by 2-5 cm wide. The flowering shoots are in the axils of leaves and there are 1-4 flowers in a group. The fruit is a pod 6 cm long by 8 mm wide. It is slightly curved. There are 6-7 seeds.
Flowers axillary, pedunculate or in 2–3-flowered fascicles; peduncle 0.5–4.3 cm long or absent; pedicels 4–6 mm long; bracts 4–10 mm long, filiform; bracteoles 1–1.5(2) mm long, ovate-lanceolate, 1–3-striate, persistent.
Standard reddish-mauve, purplish-blue, or pinkish, often with darker flushing or veining, sometimes greenish outside; wings deep pinkish-purple, 8–12(15) × 9–12(15) mm, almost round; keel paler.
Calyx sparsely pubescent; tube 2–4 mm long; lower lateral lobes 1–3 mm long, triangular, lower central lobe 2–6 mm long, triangular or subulate, upper pair fused for almost all of their length.
Scrambling herb, sometimes prostrate, creeping and rooting at the nodes, 0.50–3 m long, arising from a perennial woody rootstock.
Ovary 5–8 mm long, linear-oblong, compressed; style 3–6 mm long; stigma minute, terminal, capitate, penicillate.
Pods 2.5–9.5 cm × 6–12 mm, oblong, falcate, glabrous or minute puberulent on the surfaces, 4–7-seeded.
Seeds brown or reddish-brown speckled black, 2–8 × 3–2 × 1–6 mm, reniform, compressed; aril minute.
Stems annual, slender, puberulent or pubescent.
