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Pakistan | Family List | Malvaceae | Sida

Sida spinosa Linn., Sp.Pl. 683. 1753. Mast. in Hook. f.,l.c.323; Cooke, Fl. Pres. Bomb (rep.ed.) 98.1958; Parker, For. Fl.Punj.ed.3.33.1956; Borss.,l.c.191; S. Abedin, l.c.

Erect, annual or perennial, stellate pubescent, 30 cm to 1 m tall undershrub. Leaves with filiform, 2-5 mm long stipules; petiole 2-20 mm long; 1-3 spiny tubercles present on stem at the base of petiole; blade 0.5-4 cm long, 0.3-2.5 cm broad, lanceolate to ovate, oblong or somewhat orbicular, rounded at base, acute or obtuse at apex, serrate, usually cinereous on both surfaces. Flowers axillary, solitary or 2-5 in fascicles in terminal branches; pedicel 2-5 mm, in fruit up to c. 2 cm long, jointed near the middle or top. Calyx 4-5 mm long, c. 5 mm across, slightly accrescent, fused somewhat above the middle; lobes triangular; acute to acuminate, 1-2 mm long. Corolla white, exceeding the calyx. Fruit depressed globose, pubescent above; mericarps 5, membranous, 2-3 mm long, trigonous, dehiscent at apex but seed released from the disintegrated base, radially striately nerved, apically with 2, 0.5-0.8 mm long, divergent awns. Seeds c. 1.5 mm long, glabrous, brown to black.

1 Leaves mostly large, 1-4 cm long, 0.5-3 cm broad   Sida spinosa var. spinosa
+ Leaves mostly small, 5-10 mm (-20) long, 3-8 (-10) mm broad   Sida spinosa var. kazmii

Lower Taxa


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