Herb with stout to rather slender stems, often much-branched from near the somewhat woody stock, ± 15-45 cm. tall; branchlets ascending, bifariously pubescent to almost pilose, rather stout. Lvs opp., floral sts alt., ± remote, on broad ± pubescent petioles up to 2 mm. long. Lamina green to brownish green, broad-ovate to ovate-oblong, sts subacute, (8)-12-(20) × 6-(14) mm., subcoriac., glab. or very nearly so; margins rounded to subcordate at base, rather remotely but distinctly rather coarsely denticulate. Fls 8-12 mm. diam.; calyx ± 5 mm. long, lobes ovate-lanceolate, cleft to ± halfway; petals white or rose, 8-9 mm. long. Capsules rather stout, 3-4 cm. long, green to erubescent, sparsely ± glandular hairy; peduncles ± pilose, 20-25 mm. long. Seeds papillose.

n = 18

n = 18

2n = 36

Herb 7-45 cm tall, very sparsely branched from the base and sometimes also above. Stems with strigillose lines running down from margins of petioles, hairy all round above. Lamina of lf narrowly to broadly ovate, 1-3 × 1.2-2 cm. Floral tube 0.9-1.4 mm deep, glandular-hairy. Petals white, 7-11 × 5-8 mm. Capsule with glandular hairs, and sometimes with a few strigillose hairs, 3.9-5.2 cm long; fruiting pedicels 1.5-2.5 cm long.