Botanical Survey of India | Flora of India

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Wissadula periplocifolia (L.) Pers. ex Thwaites, Enum. Pl . Zeyl. 27. 1858. Sida periplocifolia L., Sp. Pl. 684. 1753; Roxb., Fl. Ind. 3: 172. 1832. Abutilon periplocifolium (L.) Sweet, Hort. Brit. 53. 1826; Wight & Arn., Prodr. 55. 1834. Wissadula zeylanica Medikus, Malv. 25. 1787. W. rostrata var.zeylanica (Medikus) Masters in Fl. Brit. India 1: 325. 1874.

Beng.: Banvasma, Sahasravedi.

Undershrubs, annual or perennial, stout, 1.5 - 2 m high; stems, petioles, pedicels and rachises velutinous to tomentose by minute and larger ferruginous stellate and simple hairs. Leaves 4 - 11 x 1 - 4.5 cm, narrowly triangular, ovate or lanceolate, shallowly cordate to truncate at base, long acuminate or acute at apex, entire, 5 - 7-nerved from base, sparsely stellate-hairy to glabrous beneath; petioles 5 cm long; stipules 1.5 - 4 cm long, filiform. Lower flowers axillary, solitary, mostly accompanied by a bud finally sprouting into a side branch; upper flowers in long terminal, lax, panicles; pedicels 1 - 4 cm long, acaescent up to 10 cm. Calyx lobes ca 2 x 1.5 mm, ovate to triangular, acute. densely short, simple hairy mixed with stellate hairs outside, glabrous inside. Corolla pale yellow with dark yellow lines, rarely white, 8 - 12 mm across; petals obovate, rounded to emarginate at apex, ciliate at base. Staminal column very short, glabrous. Schizocarps 6 - 10 mm across, obconic; mericarps ca 0.5 mm long, mucronate, dorsally rounded, sparsely hairy. Seeds 2.5 - 3 mm across, obconic to globular, rounded at apex, pointed at base, densely long, simple hairy especially on hilum.

Fl. & Fr. Nov. - March.

Distrib. India: Throughout as a weed.

Pantropical weed, native of tropical America.

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