Description from Flora of China
Herbs pyramidal, erect. Stems purple-red when dry, ca. 40 cm tall, smooth, glabrous, many branched. Petiole ca. 1 cm at mid stem; leaf blade subrhombic to ovate-lanceolate, ca. 4.8 × 2 cm and largest at mid stem, herbaceous, glabrous, base cuneate-decurrent, margin incised-serrate, apex caudate-acuminate. Racemes poorly defined, terminal, 5-10 cm, all forming a panicle; bracts entire, as long as or shorter than flowers, foliaceous basally, lanceolate upward. Pedicel 2-3 mm, purple-red, finely puberulent or subglabrous. Calyx ca. 2 mm, glabrous, sparsely glandular; scutellum inconspicuous, ca. 0.5 mm. Corolla purplish, ca. 2 cm, sparsely puberulent outside, glabrous inside; tube slightly saccate, throat to 4 mm wide; middle lobe of lower lip triangular-ovate, to 4 mm wide, margin entire; lateral lobes narrowly triangular-ovate. Nutlets unknown. Fl. Jun.
* Stony riverbeds; ca. 600 m. Jiangxi, Zhejiang.