Description from Flora of China
Herbs perennial, to 20 cm tall. Stems many, terete, rigid, simple or with few branches, sparsely pilose. Leaves opposite, sessile, upper 2 pairs crowded, forming a whorl, lanceolate, 20--35 X 4--8 mm, abaxially strigillose on midvein, otherwise glabrescent, adaxially densely bristly, tapering toward dilated, auriculate, semi-clasping base, apex acuminate; veins 4 or 5 pairs. Inflorescences terminal, capitate, 4--8-flowered; bracts ovate, ca. as long as calyx. Pedicel 1--3 mm, densely pubescent. Calyx lobes subulate, ca. 8 mm, pubescent near apex and on midvein. Corolla yellow; tube ca. 3.5 mm; lobes elliptic, 7--8 X 3.5--4 mm, densely red glandular punctate on upper 1/2, apex obtuse. Filaments connate basally into a ca. 3 mm high tube, free parts 2--4 mm; anthers dorsifixed, opening by lateral slits, ca. 1.5 mm. Ovary ovoid; style ca. 7 mm. Capsule unknown. Fl. Jun.
* On limestone rocks, woodland margins; ca. 800 m. E Guizhou (Kaili Xian).