Perennials 5-10 cm tall. Stems ascending, simple, glabrous. Basal rosette leaves poorly developed; leaf blade lanceolate, 4-6(-20) × 2-3 mm, base connate for 2-4 mm, margin scabrous, apex acuminate, midvein distinct. Stem leaves larger and more crowded toward apex; leaf blade base connate for 2-3 mm, margin smooth or scabrous, apex acuminate, midvein distinct. Lower stem leaves narrowly oblong, 3-6 × 1.5-2 mm; middle to upper leaves linear, 0.6-2 cm × 1-1.5(-2) mm. Flowers terminal, solitary. Pedicel 5-10 mm. Calyx tube narrowly obconic, 1.5-1.6 cm; lobes green, linear, 1-2.5 cm, margin scabrous, apex acuminate, midvein distinct. Corolla pale blue, narrowly obconic to funnelform, 4.5-5.5(-6) cm, tube pale yellow-white with blue streaks; lobes ovate-triangular, 6-7.5 mm, margin entire, apex acute; plicae broadly ovate, 4-5 mm, margin entire or erose, apex obtuse. Stamens inserted at middle of corolla tube; filaments 7-9 mm; anthers narrowly ellipsoid, 2.5-3 mm. Style 5-6 mm; stigma lobes linear. Capsules ellipsoid, 1.8-2 cm; gynophore to 2.8 cm, slender. Seeds light brown, ellipsoid, 1-1.2 mm. Fl. and fr. Aug-Oct.
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