Polycarpaea diffusa Wight & Arn. in Ann. Nat. Hist. 3: 91. 1839; Edgew. & Hook. f. in Fl. Brit. India 1: 245. 1874.

Herbs, slender, glabrous, 15 - 45 cm high. Leaves pseudo-verticillate, narrow, linear or subulate, obtuse at apex, 6 - 12 mm long; stipules lanceolate, ca 0.75 mm long. Cymes lax, many-flowered, puberulous. Flowers ca 2 mm long. Sepals ovate-lanceolate, acuminate at apex, slightly longer than petals and capsules.

Fl. May.

Distrib. India: Coastal areas of Tamil Nadu.

Endemic.