Herbs perennial, 15--30 cm tall. Roots slightly robust. Stems solitary or sparsely clustered, erect or ascending, simple, densely hairy with violet, nodiferous glandular hairs, apically viscid. Basal leaves usually violet, oblanceolate, 5--15 × 1--2 cm, both surfaces slightly coarse, sometimes sparsely hairy, margin ciliate, midvein prominent, base attenuate into long petiole, apex acute or rarely obtuse; cauline leaves 2 or 3 pairs, sessile, ovate or ovate-lanceolate, margin ciliate, apex acuminate. Cymes many flowered; flowers slightly nutant. Pedicel 5--15 mm, densely violet glandular hairy; bracts ovate-lanceolate or lanceolate, glandular hairy. Calyx narrowly campanulate, 1--1.2 cm × 3--3.5 mm, densely violet glandular hairy, closed in fruit, longitudinal veins cohering at apex; calyx teeth triangular-lanceolate, ca. 4 mm, glandular hairy. Androgynophore very short, villous. Petals included, lilac or red, ca. 1 cm; claws saccate or oblanceolate, glabrous, auricle erose at margin; limbs nearly orbicular, deeply 4-lobed; median lobes orbicular, shallowly bifid to middle of petals; lateral lobes linear-orbicular, small; coronal scales suborbicular to orbicular. Stamens included; filaments glabrous. Styles included. Capsule ellipsoid, ca. 1 cm, slightly longer than calyx. Seeds reniform, minutely tuberculate. Fl. Aug--Sep, fr. Oct.
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