Stock slender, rather woody; stems decumbent in basal parts and rooting, then ascending or sprawling, slender, simple or sparingly branched, up to ± 1 m. long; tips and branchlets pale, thinly puberulous. Lvs opp., except in floral region, distant, subsessile or on petioles up to 2 mm. long. Lamina ovate-oblong to oblong-lanceolate, 20-30-(40) × 8-10 mm., pale green, membr., glab.; margins very minutely denticulate. Fls (8)-12-15-(20) mm. diam.; calyx deeply cleft, ± 5 mm. long, lobes lanceolate to ovate-lanceolate, puberulous to glabrate; petals white, obcordate, ± 10 mm. long. Capsules rather stout 40-60-(70) mm. long, ± puberulous; peduncles 20-50 mm. long, slender, puberulous. Seeds smooth.

n = 18

2n = 36

Loosely tufted herb up to 75 cm tall, with numerous leafy stolons. Stems mostly glabrous, but strigillose along lines decurrent from margins of petioles. Lamina of lf elliptic to ovate, 1.2-4 × 0.7-1.5 cm, subsessile. Floral tube 1-1.7 mm deep, strigillose and glandular. Petals white, often flushed pink later, 6-11 × 4.5-6 mm. Capsule moderately to densely strigillose and glandular, 4-6 cm long; fruiting pedicels 1.2-2.8 cm long.