Medicago rugosa

Prostrate or decumbent annual herb; stems 30–40 cm long, covered with a mixture of simple and glandular hairs. Leaflets obovate to oblanceolate, 5–23 mm long, 3–19 mm wide, serrate towards apex, upper surface glabrous, lower surface appressed-hairy, apex rounded or truncate with a terminal tooth; stipules to c. 10 mm long, ruggedly toothed, lower surface hairy. Inflorescence 1–7-flowered; peduncle 0.5–2 cm long, equal to or shorter than subtending petiole. Pedicels to c. 2 mm long; calyx 2.5–3 mm long, teeth shorter than or equal to tube; corolla yellow; standard 2.5–4 mm long; wings slightly shorter than keel. Pod with 2.5–5 moderately loose coils, discoid to short-cylindric, 1–3 mm long, 5–10 mm diam., glabrescent with glandular hairs, spineless; coil edge thin; face with 8–18 slightly curved radial veins, anastomosing soon after leaving centre, thickening near edge and obliquely joining the elevated dorsal suture; grooves absent; seeds 1–3, to c. 4.5 mm long, yellow to brownish. Flowers spring.