Glab. herb with succulent branching creeping stems rooting at the nodes, c. 15 cm. long. Branches and branchlets short, ascending. Lvs sessile, amplexicaul, ± 4-7 × 3-5 mm., ± broadly ovate-oblong, obtuse, entire, ± succulent. Fls few, solitary on very short stalks. Calyx < corolla-tube, broad-funnelform, minutely toothed at truncate apex. Corolla ± 6-12 mm. diam., white with yellow throat, tube flaring above, lobes oblong. Capsule broad-cylindric, ± 6·5 mm. long, included in slightly enlarged calyx.

2n = 20

Glabrous, mat-forming herb; stems usually prostrate, rarely erect, succulent, rooting at nodes. Lvs sessile, amplexicaul, usually 2-7 × 1-5 mm, ± broadly ovate-oblong, entire, punctate, ± succulent. Fls on short ascending branches, solitary in lf axils; pedicels 2-3-(7) mm long. Calyx (2)-3.5-6 mm long, < corolla tube, broad-funnelform; apex truncate, minutely toothed. Corolla 10-15 mm long, moderately 2-lipped, light purple, sometimes appearing bleached, red-spotted, with yellow open throat; lower lip bearded; lobes shallow, broader than long. Capsule 6.5 mm long, broadly cylindric.