Annual, erect, suberect or decumbent, branched herb; roots fibrous, stem silky or cottony, rooting at the lower nodes; leaves sessile, linear-lanceolate or narrowed from base to the apex, acute or acuminate, woolly on both the surfaces; flowers in axillary or terminal, subsessile cymes, usually few together on unequal peduncles, bracts lanceolate, falcately recurved, twice as long as the cyme; bracteoles ovate-lanceolate, falcate, pink; sepals-3, free or connate at the base, subequal, pilose; petals-3, ovate-suborbicular; stamens 6, filaments filiform, bearded, soft, brushy hair blue in upper part, white in lower; ovary sessile, villous, 3-celled, ovules-2 in each locule, erect or pendulous, style filiform; capsule oblong, trigonus, almost glabrous, pilose only at apex; seeds-2, oblong, rugose.