长柄垂头菊 chang bing chui tou ju

Stem solitary, erect, to 55 cm tall, 4.5-5 mm in diam. at base, proximally glabrous, distally black pilose. Basal leaves petiolate; petiole 15-30 cm, glabrous, base sheathed, proximally purplish red; leaf blade broadly elliptic, 12-15 × 6-9 cm, glabrous, both surfaces with conspicuous pinnate veins, base broadly cuneate, margin coarsely sharply dentate, apex rounded. Stem leaves smaller distally, proximal leaves petiolate or sessile; sheath to 5 cm, tubular; leaf blade obovate-oblong, to 10 × 4 cm, margin shallowly sharply dentate, apex rounded; upper leaves sessile, without sheath, oblong, base semiamplexicaul, margin sharply dentate. Capitula 3, in corymb-raceme; peduncles 4-10 cm, black pilose. Involucre hemispheric, 1-1.2 × ca. 1.5 cm, outside densely black pilose; phyllaries 12-14, in 1 row, base united and cupular, separate part linear, 2-3 mm wide, apex acuminate, white ciliate. Ray florets yellow; lamina narrowly lanceolate to linear-lanceolate, 1.5-2 cm × 3-5 mm, apex acuminate; tube ca. 1.5 mm. Tubular florets numerous, yellowish brown, ca. 7 mm; tube ca. 2 mm; limb narrowly cylindric. Achenes white, oblong, ca. 4 mm. Pappus white, as long as tubular corolla. Fl. and fr. Jul.

● Stream banks on mountains; ca. 4500 m. SW Xizang.