Plants perennial, glabrous throughout. Rhizomes elongated, exposed. Caudexes erect, often enveloped by remains of old leaves. Stems caespitose, erect, 20-50 cm tall. Basal leaves basally attenuate into a long petiole; blade spatulate or elliptic, margin sparsely denticulate; cauline leaves sessile, broadly linear, 2-6 cm. Flowers terminal, solitary or several. Calyx tube obconic, 3-7 mm; lobes subulate, 5-9 mm. Corolla purple, funnel-shaped, cleft to middle, 1.5-2 cm. Capsules narrowly obovoid, 12-16 × 6-10 mm. Seeds brown-yellow, elliptic, nearly 1 mm. Fl. Jun-Jul.
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