天目山蓝 tian mu shan lan

Herbs 30-35 cm tall. Stems 6-angled, pubescent. Petiole 3-10 mm; leaf blade broadly ovate, 1.5-6 × 1-4 cm, both surfaces subglabrous, secondary veins 3-6 on each side of midvein, base broadly cuneate to subrounded, margin entire, apex cuspidate to acute. Cymes terminal or pseudo-axillary; outer involucral bracteoles narrowly lanceolate, 3.5-6 mm, pubescent; inner involucral bracteoles similar to outer involucral bracteoles. Calyx ca. 3 mm; lobes linear, pubescent. Corolla light purple, ca. 2 cm; tube slender; lip in lower position oblong-elliptic, ca. 1 cm, apex emarginate; lip in upper position oblong-spatulate, minutely 3-lobed. Staminal filaments 7.5-8 cm, pubescent; anther thecae linear, parallel, inserted at different levels, touching each other for 2/3 of length. Ovary pubescent; style ca. 2 cm, glabrous. Capsule 8-9 mm, pubescent. Seeds ca. 1.2 × 1.2 mm. Fl. Aug, fr. Oct.

● Thickets. Zhejiang (Tianmu Shan).