Herbs perennial, 20--30 cm tall, densely glandular villous throughout. Principal root conical, robust, slightly lignified, multicrowned. Stems sparsely caespitose, erect, simple. Basal leaves oblanceolate, 3--7(--10) cm × 7--16 mm, both surfaces and margin glandular hairy, midvein prominent, base attenuate into petiole, apex obtuse or acute; distal leaves lanceolate, smaller than basal leaves. Flowers 1--4. Pedicel 1.3--1.5 cm, slender, densely glandular hairy; bracts linear-lanceolate, 3--8 mm, herbaceous. Calyx narrowly campanulate, 7--11 × 3--3.5 mm, open at apex, glandular hairy; longitudinal veins deep green or violet, shortly glandular villous, cohering at calyx teeth; calyx teeth triangular-ovate, ca. 4 mm, margin membranous, sparsely ciliate, apex obtuse or acute. Androgynophore ca. 1 mm. Petals exserted ca. 5 mm beyond calyx, lilac; claws prominently exserted, narrowly cuneate, with triangular auricles, long ciliate at base; limbs broadly obovate, ca. 4 mm, deeply bifid; lobes entire, linearly 1-lobed on two sides; coronal scales elliptic, laciniate. Stamens slightly exserted beyond corolla throat; filaments hairy at base. Styles exserted. Capsule ovoid, 8--9 mm, shorter than calyx, 10-toothed. Seeds dark brown, orbicular-reniform, ca. 1.5 mm, thick, minutely tuberculate. Fl. Jun--Jul, fr. Jul--Aug.
Home