Perennials, 20-25 cm tall. Stems erect or ascending, simple, densely villous with gray-white multicellular hairs. Leaves 4 or 5 pairs; lower leaves petiole 1-1.5 cm; leaf blade shallowly cordate to deltoid-orbicular, smaller than upper leaves; upper leaves shorter petioled, leaf blade ovate-orbicular to ovate, 2.5-4 X 1.5-3 cm; all leaves papery, sparsely with gray-white hairs, base rounded, margin coarsely dentate, apex mostly obtuse. Racemes usually paired, axillary from uppermost leaves, 3-7 cm, lax, axis and pedicels villous with multicellular hairs; peduncle 1-2 cm; bracts broadly linear, almost as long as pedicel. Calyx 4-lobed; lobes lanceolate, 3-5 mm, subequal, glabrous or sparsely ciliate. Corolla white, rotate, ca. 1.2 cm in diam.; tube less than 1.5 mm; throat hairy. Capsule deltoid-flabelliform, strongly compressed, ca. 5 X 9-10 mm, base subtruncate or with an angle greater than 120°, margin apically sparsely glandular ciliate, emarginate. Style 2-3 mm. Seeds 2-10 per locule, flattened, slightly convex. Fl. Jun.
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