Biophytum nudum (Arn.) Wight, Ill. 1: 161. 1840; Edgew. & Hook. f. in Fl. Brit. India 1: 438. 1874. Oxalis nuda Arn. in Nova Acta Phys. Med. Acad. Caes. Lep. Carol. Nat. Cur. 18(1): 326. 1836.

Herbs, perennial, semiwoody; stems erect, umbellately branched, 15 - 60 cm high. Leaflets 15 - 20 pairs, oblong, slightly falcate, truncate at base, strongly cuspidate, 3 - 8 cm long, faintly hairy, glaucous or whitish beneath with prominent nerves; lower ones smaller. Peduncles exceeding leaves, appressed hairy. Flowers few in small umbels; pedicels slender, as long as sepals, hairy; bracts numerous, lanceolate, crowded. Sepals lanceolate, acute, mucronate, nerves nearly glabrous. Capsules ovoid, blunt, almost equalling sepals; seeds not furrowed, slightly tuberculate.

Fl. & Fr. March - Sept.

Distrib. India: Madhya Pradesh and Tamil Nadu.

Sri Lanka.