Herbs, procumbent to creeping, rooting at nodes, to 30 cm tall; stems densely white-or pale yellow villous. Leaves usually in unequal pairs; petiole 0.5-2(-3) cm, densely hirtellous or villosulous; blade drying thinly papery or submembranous, broadly ovate, ovate, or oblong-ovate, 1.5-8(-11) × 1-6 cm, sparsely hirtellous to villous on both surfaces, base subrounded to obtuse, usually inequilateral, apex acute to obtuse; secondary veins 6-11 pairs; stipules caducous, not seen. Inflorescence congested-cymose, 2-or 3(-6)-flowered, densely villosulous to villous; peduncle 0.5-1.2 cm; bracts linear or filiform, 1.5-10 mm. Flowers distylous, subsessile or on pedicels to 3 mm. Calyx villosulous; hypanthium subglobose, ca. 1.5 mm; lobes filiform, ca. 2 mm, with 1 globose gland in each sinus. Corolla white or pale purple, drying yellow, slenderly funnelform, sparsely villous to glabrescent outside; tube 18-20 mm, sparsely pilose inside in basal 1/3; lobes ovate-triangular, ca. 6 mm, dorsally ribbed, apex rostrate. Capsules mitriform, ca. 3 × 7 mm, densely villous. Fl. Jun.
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