Herbs perennial, diffuse. Stems cespitose, spreading or procumbent, ± black, 5--10 cm, glabrous, shiny. Leaves alternate; petiole of basal leaves 5--7 cm; leaf blade linear-oblong, ca. 3.5 cm, glabrous, adaxially shiny, pinnatisect; segments 10--20 pairs, ovate-oblong, margin lobed, spinescent dentate. Stem leaves similar to basal ones but smaller. Pedicel 5--8 mm, slender, curved. Calyx cylindric; tube ca. as long as pedicel, shallowly cleft anteriorly; lobes 5, ± equal. Corolla purple, 4--5 cm; tube slender, 3.5--4.5 cm, white pubescent apically, glabrous basally; galea twisted basally; beak semicircular, 6--10 mm, slender; lower lip ca. 1 X 1.5--2 cm, glabrous. Filaments glabrous. Fl. Aug--Sep, fr. Sep--Oct.
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