Annual, glabrous, green, 1-5 cm high erect herb. Stem smooth, canaliculate, branched from base or from middle, ending up in a long pedicellate flower. Basal leaves 0.5-0.8 x 0.1-0.2 cm, rosulate, oblanceolate gradually narrowing to petiole, entire, obtuse. Cauline leaves 1-2 pairs on each branch, 0.4-1.0 x 0.1-0.3 cm, oblanceolate with petiole narrowing gradually, obtuse, entire. Inflorescence solitary, terminal or axillary cynic, borne on up to 0.8 cm long pedicel. Flower 4-merous, campanulate, 0.2-0.9 (-1.0) cm long. Calyx 0.25-0.6 cm long, divided almost to base, tube very small or absent, up to 0.05 cm long, lobes 0.1-0.5 x 0.01-0.07 cm, lanceolate, acute, entire. Corolla 0.4-0.8 (-0.9) cm long, yellow, yellow red or wine rose, tube 0.3-0.6 cm long, lobes 0.1-0.3 x 0.1-0.2 cm, broadly ovate-ovate, obtuse, entire. Stamens versatile, filaments filiform, slightly thickened at base, attached to corolla tube at ± middle or slightly above, anthers 2-lobed, ovate, dorsifixed. Nectaries present at the base of the corolla tube, one each opposing the corolla lobes. Ovary lanceolate, up to 0.4 cm long, sessile, style present with a bilobed distinct stigma. Capsule included, lanceolate-elliptic.