Succulent prostrate annual herb forming loosely matted patches but not rooting at nodes; main stem 1-2 mm. diam., ± umbellately divided into us. 5 far-spreading, copiously oppositely branched stems up to c. 2 dm. or more long, or whole plant much smaller; stems and branches glab. or ± pilose. Lvs sessile, fleshy, up to c. 6 × 2.5 mm., lanceolate to ovate to quadrate in outline, acuminate, apiculate, entire or with a pair of narrow to filiform apiculate teeth up to 1·5 mm. long about the middle (both forms us. on same plant), glab. or ± pilose, segs sts tipped with cluster of hairs. Fls borne singly along the branches on short ± horizontal pedicels which are bent abruptly at junction with calyx so that fl. stands erect. Calyx 4-6 mm. long, glab. or ± pilose, cut c. 1/2 way into narrow, acuminate, sts hair-tipped lobes, anterior clefts us. > other 3. Corolla white to cream, 1-6·5 cm. long; tube up to 6 cm. long, very narrow to filiform, flaring suddenly into limb 5-10 mm. diam.; lobes of lower lip 1·5-3 mm. wide, entire, of upper lip very short but wider, up to 5 mm. wide. Anthers free, erect, golden yellow with completely glab. margins, awns small, almost equal. Ovary with 1 ovule per locule; capsule broader than tall, rupturing calyx at anterior cleft; sts 2-seeded and symmetrically obcordate or bicornute, more often 1-seeded by abortion and asymmetric, c. 2 × 4 mm. and ovate to triangular in outline; apparently indehiscent. Seed ± ovate, c. 3 mm. long.

Succulent, prostrate, annual herb forming loosely matted patches, ± umbellately divided into usually 5 spreading, copiously branched stems to c. 20 cm long, or whole plant much smaller and more compact; stems and branches glabrous or ± pilose. Lvs sessile, to c. 6 × 2.5 mm, lanceolate to ovate, acuminate, entire or with a pair of narrow to filiform apiculate teeth, glabrous or ± pilose. Fls on short ± horizontal pedicels bent abruptly upwards. Calyx 4-7 mm long, glabrous or ± pilose, divided c. 1/2 way. Corolla white to cream, usually 1.5-6.5 cm long; tube ± filiform, usually much > 1 cm long. Anthers free, golden yellow; margins completely glabrous; awns small. Capsule < to slightly > calyx, c. 4 × 2 mm.