Plants perennial. Stems erect or slightly ascending. Leaves 3-or 4-pinnate; petiole 7-10 cm; leaf blade broadly ovate, ca. 7 × 7 cm; lobes numerous, narrowly elliptic to linear-lanceolate or oblanceolate, margin entire or few lobulate, 8-15 × 2-4 mm, abaxially glabrous. Verticillasters 6-10-flowered, in pedunculate racemes or panicles 10-23 cm; rachis gray puberulent, glandular pilose; bracts linear-lanceolate, 4-7 mm. Pedicel 1.5-2 mm, puberulent. Calyx tubular, ca. 7 mm, glandular strigose along veins outside; tube ca. 4 mm, sparsely villous annulate at throat inside; upper lip triangular or semicircular, ca. 2.5 × 3.5 mm, margin entire; lower lip ca. 2.8 × 3.5 mm, shallowly 2-toothed; teeth triangular, apex spinescent. Corolla yellow, densely pilose; tube imperfectly pilose annulate inside, ca. 8 mm, ca. 1.5 mm wide at base; upper lip oblong, ca. 2.2 × 1.8 mm; lower lip ca. 2.5 × 4 mm. Stamens exserted; filaments ca. 2 mm; connectives 6-8 mm, glabrous, upper arms ca. 5 mm, lower ca. 1.8 mm. Nutlets brown, ellipsoid, ca. 1.5 mm. Fl. May-Sep.
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