Scrambling annual herb. Lvs distant; lamina finely dissected, pale, glaucous, up to 8 × 4 cm; segments linear or linear-oblanceolate. Infl. very dense, elongating at fruiting, with > 20 fls; rachis > peduncle. Peduncle 0-1 cm long; bracts oblong, pale, membranous, pinkish, = or > pedicels, 2-3 × 1-1.5 mm. Sepals broadly ovate, laciniate near base or entire, acute, 2.5-4 × 2.5-3.5 mm. Corolla purplish pink with green and purple tips, 6-7 mm long, smaller and paler in weak or shaded plants; lower petal spoon-shaped with spreading margins at apex. Fr. ± globose, 2-2.5 × 2-2.5 mm, rugose when dry; apex broadly subacute; apical pits small.