Perennials 20-50 cm tall, with a short rhizome. Stems erect; branches spreading, glabrous. Basal leaves withered at anthesis; petiole 5-10 mm; leaf blade elliptic, ovate, or obovate, 2-4 × 0.7-2 cm, base narrowed, margin serrulate, apex acute, midvein distinct. Stem leaves widely spaced; leaf blade ovate-triangular, broadly ovate, or cordate, 1-3 × 0.5-2 cm, shorter than internodes, abaxially pubescent, base rounded, margin serrulate, apex acute; veins 3-5, prominent. Flowers terminal, solitary, sessile. Calyx tube tinged purple, narrowly obconic, 0.7-1.3 cm, membranous, narrowly winged; lobes linear-lanceolate, 5-10 mm, margin ciliolate, apex acuminate, midvein outside prominent, minutely hispid, decurrent into wings of calyx tube. Corolla pale purple, with blackish streaks, tubular to funnelform, 2.5-4.5 cm; lobes ovate to ovate-triangular, 5-9 mm, margin entire, apex acu-minate to obtuse; plicae broadly triangular, 4-5 mm, apex long fringed. Stamens inserted at basal part of corolla tube, unequal; filaments 5-12 mm; anthers narrowly ellipsoid, 2.5-3 mm. Style 6-8 mm; stigma lobes linear. Capsules ellipsoid, 2-2.5 cm; gynophore to 2 cm. Seeds light brown, subglobose, ca. 1 mm in diam., broadly winged. Fl. and fr. Oct-Feb.
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