洪桥鼠尾草 hong qiao shu wei cao

Plants perennial. Stems erect 30-38 cm, unbranched, densely pilose toward apex. Petiole of basal leaves, ca. 2.5 × as long as blade, petiole of upper leaves obsolete; leaf blade ovate to oblong-ovate, 3-7 × 1.2-5.3 cm, papery, adaxially fine strigose, pilose, abaxially fine strigose, obscurely glandular, base cordate to subhastate, margin crenate, apex obtuse. Verticillasters 6-flowered, in terminal racemes 6-10 cm; rachis densely pilose; bracts ovate to oblong-ovate, 0.8-3.5 × 0.5-1.5 cm. Pedicel ca. 3 mm. Calyx narrowly campanulate, 1.5-1.9 cm, densely pilose especially on veins; upper lip broadly triangular-ovate, ca. 4 × 9 mm, margin entire; lower lip ± as long as upper, teeth triangular-ovate. Corolla yellowish, 3.5-4 cm, villous; tube 3-3.8 cm, ± pilose annulate inside, erect, projected from calyx, ca. 4 mm wide at base, abruptly dilated at apex, to 8 mm wide at exserted part; upper lip straight, subcircular, ca. 7 mm wide; lower lip slightly longer than upper, middle lobe ca. 5 × 6 mm. Filaments complanate, ca. 7 mm; connectives arcuate, ca. 4.5 mm, upper arms subequal to lower ones. Nutlets unknown.

* Thickets; ca. 4000 m. Sichuan.