糙毛糙苏 cao mao cao su

Stems 55-100 cm tall, strongly grooved, shiny, tawny stellate strigose near apex and sometimes on nodes. Petiole 1-5.2 cm; stem leaf blades ovate, 7-14 × 4-11 cm, adaxially sparsely strigose or subglabrous, abaxially subglabrous or veins stellate strigose with central arms of hairs very long, base cordate, margin crenate-serrate, ciliolate, apex caudate-acuminate. Verticillasters 1-3, many flowered; floral leaves with petiole 3-10 mm, blade 1.5-5.8 × 0.7-3 cm; bracts linear-lanceolate to subulate, 5-8 mm, stellate, margin stellate ciliate. Calyx tubular-campanulate, ca. 9 × 5.5 mm, splitting irregularly, densely stellate outside; teeth circular, apex tufted hairy inside, spine ca. 1.8 mm. Corolla white, ca. 2 cm; tube ca. 1 cm, glabrous outside, apex densely pilose on back, pilose annulate inside; upper lip ca. 1 cm, margin fringed, densely lanate outside, bearded inside; lower lip ca. 8 × 7 mm, densely pilose except on margin outside, middle lobe obovate, lateral lobes ovate. Filaments hairy, posterior 2 with a long, upwardly curved basal appendage. Nutlets glabrous. Fl. Jul.

* Alpine meadows, sparse forests; 2300-2500 m. Yunnan.