Shrub, 1/3-3 m, procumbent to erect, very dense glandular-pubescent to almost glabrous. Twigs terete, straight; internodes 0.75-2.5 cm. Thorns straight to slightly recurved, 1½-4 mm, yellowish, sometimes small or wanting. Leaves simple, firmly herbaceous, ovate (to rarely obovate), (1.6-)2-3(-5.2) times as long as wide, (3.5-)6-10(-13½) by (1¾-)2.5-4.5(-8.5) cm; base rounded to acute, sometimes obtuse, top narrowed, blunt to acutish, rarely rounded, mostly mucronate; nerves c. 7-9 pairs; petiole (0.25-)½-4 cm. Racemes terminal, corymbiform; rachis 2-3 cm. Pedicels (1½-)2-3(-3.5) cm. Bracts caducous, 2-5½ mm stalked, blade 6-10 by ½-2.5 mm, lanceolate to ovate, acute, subtended by 2 minute thorns. Buds ovoid, acute. Sepals glandular-puberulous outside, boat-shaped, (8-)10-15(-20) by (3-)6-9(-12) mm, ovate, acute to acuminate, inner pair somewhat smaller, flattish, sometimes up to 1 mm clawed, obovate, acute. Petals pure white on a green claw, all pointing upwards at the adaxial side, (4.5-)8-15(-22) mm clawed, blade orbicular to broad-elliptic, 5-12 by 4½-7 mm. Gland green, 5.5-15 by c. 1 mm; top yellow, flat, transverse, one-sided, lanceolate, 4.5-6 mm long. Stamens (5-)6(-7), androgynophore 1-2.5 cm; filaments 1-2 cm, anthers 3½-5 by 0.75 mm, all glabrous. Gynophore 1½-2½ cm; ovary cylindrical, 4.5-6 by 0.75-1 mm, both sparsely glandular-puberulous; stigma knob-shaped, small; placentas 2. In fruit the pedicels hardly stretched or thickened, androgynophore (1-3-)2-3(-3.5) cm, gynophore (1½-)2-3(-3.5) cm, more or less densely glandular-puberulous. Fruit cylindrical, dull grey-brownish, (4.5-)7-11 cm by 5-13 mm, +-glabrescent, dehiscing basis-copically, the filiform placentas persisting as a replum. Seeds up to c. 20, 3-4 by 2.5-3 by 1.5 mm, more or less deeply reniform, with shallow concentric ribs, dull dark brown.
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Shrubs, procumbent to erect, to 3 m tall, almost glabrous to densely glandular-pubescent; branches terete, straight; stipular spines straight to slightly recurved, 1.5–4 mm long, sometimes reduced or absent. Leaves simple, ovate, obtuse to acute, usually mucronate; 3.5–14 mm long; base rounded to acute; nerves 7–9 pairs. Inflorescence terminal, corymbose; bracts caducous. Sepals obovate, 8–20 mm long, glandular-puberulous outside. Petals orientated to adaxial side; claw 4.5–22 mm long, green; lamina orbicular to broadly elliptic, 5–12 mm long, white. Stamens 5–7; androgynophore 1–2.5 cm long; filaments 1–2 cm long; anthers 3.5–5 mm long. Gland 5.5–15 mm long, green with flat, lanceolate, yellow apex. Gynophore 1.5–2.5 cm long; sparsely glandular-puberulous; ovary cylindrical, 4.5–6 mm long; placentas 2. Fruit a capsule, cylindrical 4.5–11 cm long, 5–13 mm wide, glabrescent. Seeds c. 20, deeply reniform; axis through attachment 2.5–3 mm long; testa with shallow concentric ribs.
Not rare in dry shrubby or grassy habitats, sometimes coastal, also reported from limestone, and once from periodically inundated coastal forest, at low altitude, a typical constituent of the flora of the monsoon area with a long dry season.
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