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A herb that lies along the ground and keeps growing from year to year. There is a rootstock of several narrow tubers. These produce several stems that have a few branches. The tubers are 7 cm long by 1.2 cm wide. The stems are 70 cm long. They are hairy and have long internodes. The leaves have 3 leaflets and are 1-6 cm long by 1-3 cm wide. They are narrowly oval and are rounded at the base. The veins are raised underneath and are hairy. There can be 1-20 flowers in a short cluster. The standard is yellow and tinged with red inside. The fruit is a por 10-16 mm long by 7-9 mm wide. The seeds are pale brown with dark marks. The seeds are about 5 mm long by 2 mm wide.
Leaflets 3, 1.3–6.5 × 0.8–3 cm, elliptic or ovate, acute to mostly rounded but mucronulate at the apex, rounded at the base, glabrescent to pubescent above, glandular and pubescent on the nerves to densely velvety beneath; venation raised beneath, dark reddish in dry state; petiole 7–25 mm long; rhachis 6–10 mm long; petiolules 2 mm long; stipules 4–5 × 1.2 mm, narrowly triangular, pubescent, veined.
Racemes axillary, short, 1–20-flowered; rhachis 0.5–2 cm long; peduncle 1.5–9 cm long, pubescent and with longer hairs; pedicels c. 2 mm long; bracts deciduous, 2–3 × 1.5 mm, ovate, pubescent.
Standard dull yellow outside tinged or veined with red, yellow or orange inside, 6–12.5 × 3.5–7 mm, obovate or rhombic, densely pubescent and also glandular in the median area.
Prostrate perennial herb, with several sparsely branched stems from a rootstock consisting of several fusiform tubers up to 7 × 1.2 cm.
Stems slender, up to c. 70 cm long, with quite long internodes, pubescent to velvety and with some longer bristly hairs as well.
Pods 10–16 × 7–9 mm, oblong, with short pubescence and also longer ferruginous hairs c. 1 mm long and scattered glands.
Seeds pale pinkish-brown with dark speckling or black, (3)4.5–5 × 3–4 × 1.2–2 mm, ellipsoid-oblong; rim aril brown.
Calyx pubescent and glandular, 3.5–5 mm long; lobes lanceolate, ± equalling the tube.
