Herbs perennial. Roots cylindric, with robust root crowns. Stems supine or ascending, branched, densely glandular villous. Leaves narrowly lanceolate or lanceolate, 3--5 cm × 6--8(--12) mm, both surfaces hirtellous, margin coarsely ciliate, midvein prominent, base attenuate, apex acuminate. Dichasial cymes large, many flowered. Pedicel nearly as long as to longer than calyx, densely glandular hairy; bracts lanceolate. Calyx tubular, 1.5--2 cm × ca. 3.5 mm, glandular hairy, umbilicate at base, longitudinal veins violet; calyx teeth triangular-ovate, ca. 2 mm, villous, margin membranous, ciliate, apex obtuse. Androgynophore ca. 3 mm, glabrous. Petals pale red, ca. 2.5 cm; claws slightly exserted beyond calyx, oblanceolate, glabrous, auricles not prominent; limbs obovate, 8--10 mm, shallowly bifid; lobes ovate, with 1 small dentate lobe on lateral side of limbs; coronal scales ovoid, sometimes laciniate. Stamens slightly exserted; filaments glabrous. Styles slightly exserted. Capsule ovoid-globose, 1--1.2 cm. Seeds reniform. Fl. Jul--Aug, fr. Aug--Oct.