Medicago littoralis
Medicago littoralis
Kum yoncası
Annual, 7-15 cm, covered with simple hairs. Stipules dentate to laciniate. Leaflets 3-8 x 2-7 mm, pubescent on both surfaces, obtriangular, seldom slightly obovate, truncate. Peduncles 1-3-flowered, about equal to petiole. Flowers 3-6 mm. Calyx teeth broad at their base, shorter than tube. Corolla about 2 x as long as calyx. Young fruit contracted within calyx. Fruit cylindrical or discoid, glabrous or rarely puberulent, spiny, 3-10 mm high, always hardening at maturity; coils 2-6, about equal in diam., 3-7 mm, coils thickened in mature pods, very strongly adpressed, marginal and submarginal veins equally prominent; on surface of coils about 10 radial veins emerge from ventral suture, entering into the submarginal vein after slightly branching near it; submarginal vein ± limiting the coils in mature pods; tubercles or spines varying in size in a single pod, spines about 1800 to surface of coil, without a groove. Fl. 4-6. Mainly littoral sandy soils, about s.l.
Mediterranean area, coastal Caucasia.
