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Annual herb, up to 0.5 m high. Stems procumbent, up to 250 mm long. Leaves petiolate; papulose; blade elliptic or rhombic, 5-10 x 4-7 mm, thick; petioles 4-7 mm long. Flowers: axillary; solitary; pedicels 1-3 mm long; perianth segments 4, broadly triangular, apices obtuse, connate at bases, thin, yellowish green; Oct.-Mar. Fruit papulose, 4-5 x 3 mm, base truncate, covered with spines, 1.0-1.5 mm long, fruiting pedicel up to 6 mm long.
A semi-succulent papulose annual herb.. Stems prostrate, 8–30 cm. long.. Leaves petiolate; blade elliptic or rhombic, obtuse at the apex, decurrent into the petiole at the base, 9–45 mm. long, 4–24 mm. broad.. Petiole 1–20 mm. long.. Flowers axillary, solitary, pedicellate.. Calyx-segments 4, obtuse.. Stamens 4.. Ovary inferior, 3-(sometimes 2-or 4-)locular.. Fruit 3–7 mm. diameter, densely but rather softly spiny.. Fig. 11/3–4, p. 33.
