合耳菊 he er ju

Senecio wallichii Candolle, Prodr. 6: 364. 1838.

Herbs, subacaulescent, rhizomatous. Rhizome short, thick, woody. Vegetative stem erect or ascending, ± subterranean, 0.5-20 cm, leafless except at apex. Flowering stems 1-4, erect, scapiform, to 40 cm tall, slender, thinly arachnoid, glabrescent. Leaves subrosulate at base of flowering stems, long petiolate; petiole 3.5-8 cm, slender, not winged, densely to sparsely fulvous pubescent; blade broadly ovate or ovate, 3.5-13 × 2.5-11 cm, membranous, abaxially sparsely pubescent especially on veins to glabrous, adaxially sparsely scattered setulose, pinnately veined, lateral veins 8, arcuate-ascending, margin remotely, obscurely to coarsely sinuate-dentate with mucronulate teeth, apex shortly rather broadly acuminate. Capitula heterogamous, disciform or minutely radiate, few to numerous, arranged in rather dense compound thyrsoid corymbs; peduncles short, 2-5 mm, pubescent, 1- or 2-bracteolate; bracts 3-6, linear. Involucres cylindric, 6-8 × ca. 1.5 mm, calyculate; bracts of calyculus few, short; phyllaries 5, oblong, ca. 1 mm wide, herbaceous, glabrous, sparsely arachnoid, or rarely sparsely to densely setulose, margin narrowly scarious, apex obtuse to acute and puberulent. Female florets 2; corolla tube 7-7.5 mm, filiform and 5-denticulate or with minute inconspicuous apically 2-denticulate lamina. Bisexual florets 3; corolla yellow, ca. 8 mm, with ca. 3.5 mm tube and funnelform limb; lobes ovate-triangular, ca. 1 mm, apically acute. Anthers ca. 3 mm; anther tails just exceeding antheropodia; appendages oblong-ovate; antheropodia rather short and broad, basally slightly dilated. Style branches ca. 1.5 mm, fringed with long papillae; terminal tuft not clearly differentiated. Achenes ca. 2.2 mm, glabrous. Pappus white, ca. 7 mm. Fl. Sep.

Mixed forests; ca. 2700 m. Xizang (Yadong) [Bhutan, India (Sikkim), Nepal].