Scorpiurus muricatus L.
Glabrous or sparsely hairy annual; stems ribbed. Lvs sparsely hairy along margins, elliptic to ovate, acute or obtuse, c. 60-120 mm long (excluding petiole); petiole somewhat < blade; stipules partly adnate to petiole, ovate-lanceolate, 10-30 mm long. Infl. long-pedunculate, (1)-2-4-flowered. Calyx sparsely hairy; calyx teeth triangular-acuminate, < or = tube. Corolla yellow, 8-12 mm long. Pod glabrous, c. 10 mm diam., with 2-8, 1-seeded segments; outer 4-6 ribs tuberculate or spinose; seeds crescent-shaped.
N.: collected once in Palmerston North; S.: collected twice in Leeston, Canterbury.
S. Europe, Asia Minor, N. and E. Africa 1968
Casual in gardens.