A perennial branched herb up to 1 m tall. Stem and branches dense stellate-tomentose, prickly. Prickles sparse, acicular, 2-5 mm long, yellow. Leaves alternate, 1.5-11 x 3.0 cm, ovate-lanceolate to lanceolate, repand-sinuate, base cuneate to oblique. Flowers 1-5 in number, violet-blue to purplish, in extra-axillary cymes. Pedicel up to 20 mm long. Calyx ± 5 mm long deeply 5-lobed, enlarging in fruit. Corolla 20-25 mm broad. Anthers yellow. Filaments 3 mm long. Berry globose, 11-12 mm broad, yellow. Seed subreniform, c. 3 mm long.