Teramnus uncinatus (L.) Sw.

Perennial climber or rarely prostrate herb (0·25−) 1–3 m. long from a deep woody rootstock.. Stems tough, mostly branched, often twisted and somewhat angular, usually densely covered with dark ferruginous hairs.. Leaflets paler beneath, elliptic to linear-oblong, 1·8–15·2 cm. long, 0·5–3·5 cm. wide, rounded and mucronulate at the apex, rounded or ± truncate at the base, glabrous to densely hairy above, thinly to densely adpressed greyish or silvery hairy beneath, the nerves often ferruginous; petioles 0·8–7 cm. long; rhachis 0–5 mm. long; petiolules 1–4 mm. long; stipules ovate, 1·5–2 mm. long.. Inflorescences usually elongate false racemes but sometimes condensed subsessile clusters, mostly dark brown or ferruginous hairy; rhachis 1·5–32 cm. long; peduncle 0·5–9 cm. long; flowers in 2–5-flowered fascicles on the rhachis; pedicels 1–1·5(−2·5) mm. long; bracts 1 mm. long; bracteoles lanceolate, 1·5–2 mm. long.. Calyx with whitish, brown or dark blackish-brown hairs; tube 1·5–2 mm. long; lobes equal, ovate-lanceolate, 2–3 mm. long, the upper pair united for ± half to two-thirds of their length.. Standard greenish, white, mauve or pink, obovate or cuneiform, 3·5–5·5 mm. long, 2–3·5 mm. wide; keel and wings green or white with blue or mauve apex or all white or mauve, ciliate along the upper margins.. Pods linear, 2·5–5·3 cm. long, (2−)2·5–3 mm. wide, sometimes slightly constricted between the seeds, densely covered with spreading or adpressed blackish-brown, ferruginous, or mixed whitish and brown hairs; beak ± 2–4 mm. long.. Seeds yellow or brown, oblong or oblong-reniform, smooth, longest dimension 2·5–3·5 mm., shorter dimension 1·7–1·9 mm., thickness 1–1·2 mm.; rim-aril present and with a scale-like extension.