Herbs perennial, (15--)30--60 cm tall. Stems sparsely clustered or solitary, erect, simple or sparsely branched at base, pubescent. Basal leaves elliptic-lanceolate or narrowly oblanceolate, 6--10 × 0.8--3 cm, both surfaces glabrous or pubescent, base attenuate into short petiole, apex acute; cauline leaves numerous, lanceolate or narrowly oblanceolate. Inflorescence a racemiform-conical irregular thyrsoid; cymules with short to long rachis, usually 3-flowered; flowers slightly nutant. Pedicel usually shorter than calyx, rarely longer, densely villous or sparsely glandular hairy; bracts linear-lanceolate, sparsely hairy. Calyx narrowly campanulate, narrowed at base, 1--1.2 cm × 3--3.5 mm, soon becoming broader as capsule swells; veins violet or green, slightly raised, pubescent; calyx teeth triangular, ca. 3 mm, margin membranous, ciliate, apex acute or obtuse. Androgynophore 1.5--2 mm, pubescent. Petals dark red, rarely white; claws oblanceolate, 8--10 mm, hairy at base; auricles not prominent (claw at apex not or only slightly broader than limb), with erose margin; limb 3--4 mm, shallowly to deeply (to middle) bifid, with lateral triangular small teeth or small lobes; coronal scales subflabellate, ca. 1 mm. Stamens included or slightly exserted. Styles 5, included. Capsule ellipsoid, ca. 1 cm. Seeds gray, globose-reniform, ca. 1.2 mm, minutely tuberculate. Fl. Jul--Aug, fr. Aug--Sep.
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