Herbs perennial, to 20 cm tall. Roots fascicled, filiform. Stems unbranched. Basal leaves numerous; petiole to 6 cm; leaf blade linear-oblong to 7 X 1.7 cm, abaxially villous along midvein, adaxially glabrous, pinnatisect; segments 12--16 pairs, oblong, crenately pinnatifid, denticulate. Stem leaves usually 2 or 4, similar to basal leaves but smaller and shorter petiolate. Inflorescences to 6 cm, lax basally; bracts leaflike. Pedicel to 1 cm, villous. Calyx ca. 1.2 cm, slightly pubescent; lobes 5, unequal, posterior smallest, posterior-lateral pair largest, palmately incised-dentate. Corolla purple, ca. 3.5 cm; tube erect, ca. 2.8 cm, slightly pubescent; galea with 1 distinct reflexed marginal tooth on one side; beak ± filiform, straight, ca. 4 mm; lower lip ciliate. Filaments pubescent apically. Fl. Jul, fr. Aug.
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