Herbs perennial, 20-30 cm tall. Roots fleshy, conical, 15-23 cm. Leaves 1-pinnately compound, clustered at stem base, 8-15 cm; lateral leaflets 2-6 pairs, ovate, 2-3.5 X 1-2 cm, base rounded, apex acuminate; terminal leaflets ovate-rounded, entire. Inflorescences densely racemose, clustered at stem apex; bracts 1.8-3 cm. Pedicel 1-4 cm, linear. Calyx green or purple-red, with dark purple spots, campanulate, 1.2-1.8 cm; teeth triangular, 6-12 X 5-7 mm. Corolla red or purple-red, 3.5-4 X ca. 2 cm; tube purple striate adaxially, purple and with black spots abaxially; lobes rounded, apex emarginate, with glands. Stamens inserted at base of corolla tube; anthers adherent; staminode small, curved. Ovules 2-rowed in each locule. Style ca. 4 cm; stigma flabellate. Capsule narrowly lanceolate, acute at both ends, distinctly 4-angled, ca. 11 X 1 cm. Fl. May-Jul, fr. Aug-Dec.
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