Description from Flora of China
Rabdosia brevicalcarata C. Y. Wu & H. W. Li, Fl. Reipubl. Popularis Sin. 66: 591. 1977.
Herbs perennial. Stems erect, ca. 90 cm, much branched, angles densely retrorse gray pubescent. Petiole of mid stem leaves to 4.5 cm; leaf blade ovate, ca. 4 × 2 cm, ± membranous, adaxially dark green, sparsely minutely hispid, minutely pubescent on veins, abaxially tinged purplish, sparsely minutely white hispid, base abruptly attenuate, margin crenate, apex short acuminate to acute. Panicles terminal, 6-8 cm, densely pubescent; cymes pedunculate, widely spaced, 1-3-flowered; upper floral leaves bractlike, much shorter than calyces. Pedicel ca. 3 mm. Calyx campanulate, ca. 3 mm, slightly pubescent, glandular, slightly 2-lipped; teeth less than 1/2 as long as calyx, ovate-triangular, acute, lower 2 slightly longer. Corolla purplish blue, to 1.1 cm, pilose outside, yellowish glandular; tube ca. 5 mm, base ca. 1 mm in diam., upper side with an exserted spur ca. 3 mm, throat ca. 1.5 mm wide, upper lip ca. 4 mm, lower lip to 6 mm. Stamens and style nearly included. Nutlets unknown. Fl. Oct.
* Sparse montane forests; ca. 600 m. Guangdong (Lian Xian).