Description from Flora of China
Stem 50-60 cm tall, much branched, pubescent, brown glandular sometimes intermixed with spreading pilose hairs. Petiole 5-14 mm; leaf blade lanceolate, 1.5-4.2 cm × 5-13 mm, papery, glandular, adaxially olive green, abaxially gray, pubescent, impressed brown glandular, base broadly cuneate, margin remotely serrate, apex acute. Racemes 1-4 cm, usually many flowered; bracts broadly ovate to subcircular, 5-6 × 4-5 mm, green or purple, margin ciliate, apex acute to caudate. Pedicel pubescent. Calyx ca. 3.5 × 2.5 mm, pilose, teeth long subulate to lanceolate, ca. 3/4 as long as calyx. Corolla purple, ca. 3 × as long as calyx, pubescent; middle lobe of lower lip reflexed, circular, pubescent; lateral lobes erect, ovate. Posterior stamens inserted on base of upper lip, slightly exserted, anterior stamens inserted on base of lower lip; filaments shorter than anthers; anthers linear, cells divergent, ca. 2 mm, connectives distinct. Style exserted. Nutlets brownish, globose, ca. 2.1 mm in diam., pitted with small depressions. Fl. and fr. Jun-Sep.
* Roadsides. Zhejiang