Herbs, 20-50 cm tall. Rhizome short, stout, usually irregularly nodose. Flowering stem glandular pubescent and pilose. Leaves simple, basal and cauline; basal leaves broadly ovate, ca. 9 × 6.5 cm, petiole ca. 24 cm; cauline leaves opposite, petiole 3-6.5 cm, glandular pubescent and puberulent, leaf blade adaxially deep green, ovate to ovate-elliptic, 5-8.5 × 2.5-5.5 cm, abaxially densely golden yellow villous, adaxially glabrous, base deeply cordate with acute lobes nearly equal, margin spinose-serrate, apex acuminate. Racemes 8-24-flowered, 6-23 × 3-6 cm; rachis and pedicels glandular pubescent. Pedicel 1-3 cm; bracts ovate, 1-2 mm. Flowers yellow. Sepals 8 in 2 whorls; outer sepals narrowly ovate, 8-9 × 4-5 mm; inner sepals similar to outer sepals in size and shape. Petals spurred, yellow, horn-shaped, ca. 1.3 cm. Stamens ca. 4 mm; filaments flat, ca. 1 mm; anthers valved, valves revolute, apex of anther connective apiculate. Ovary terete; style ca. 2 mm; stigma quadrilobate or inconspicuous. Capsules 5-10 mm; style 3-4 mm. Fl. Apr-May, fr. May-Jun.
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