Trailing or climbing herb; stem fulvous-villous, often floriferous from the base; leaves small, linear to oblong, variable in breadth, silky villous, subsessile; flowers axillary solitary or paired or fascicled, peduncles long, slender; flowers sessile, bracts lanceolate, hirsute, small, shorter than the sepals; calyx small, densely hirsute, sepals-5, elliptic-lanceolate, unequal; corolla dull yellow or white, broadly funnel shaped, glabrous; stamens-5, filaments unequal, anthers short, oblong; ovary 2-celled, 4-ovuled, style filiform, stigmas-2, distinct, oblong or linear; capsules ovoid, glabrous; seeds 4, brown, subtrigonous, glabrous.