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FOC | Family List | FOC Vol. 20-21 | Asteraceae | Senecio

25. Senecio daochengensis Y. L. Chen, Acta Phytotax. Sin. 26: 56. 1988.

稻城千里光 dao cheng qian li guang

Herbs, perennial, rhizomatous. Stem solitary, erect, green or becoming purplish above, 20-25 cm tall, not branched, glabrous or sometimes sparsely arachnoid-pubescent. Basal leaves withered and shed by anthesis; lower stem leaves long petiolate; petiole 3-3.5 cm, not winged, basally slightly expanded; blade ovate or ovate-elliptic, 2.5-3 × 1.2-2 cm, both surfaces glabrous, lateral veins 4-6, base cuneate-attenuate, margin entire or inconspicuously denticulate, reflexed when dry, apex obtuse or rounded. Median and upper stem leaves sessile or subsessile; blade narrowly lanceolate to linear, 2.5-4.5 × 0.5-5 cm, base slightly expanded, amplexicaul, apex slightly acute or obtuse. Capitula radiate, usually 3 or 4 in terminal raceme, with linear bracts 10-15 mm; peduncles pendulous, 5-10(-40) mm, sparsely arachnoid-pubescent. Involucres campanulate or cylindric, 7-10 × 5-8 mm; bracteoles 5-8, black-purplish; phyllaries ca. 15, linear-lanceolate, distinctly shorter than disk, 1-2 mm wide, glabrous, apically acute and puberulent. Ray florets 8-11; corolla tube ca. 3 mm, puberulent above; lamina yellow, oblong or oblong-elliptic, ca. 7 × 2-3.5 mm, 4- or 5-veined, apically 3-denticulate. Disk florets 20-25; corolla yellow, 7-8 mm, with 1.5-2 mm tube and funnelform limb, lobes ovate-oblong, apically dark brown, puberulent. Anthers linear, basally obtuse. Style branches reflexed, subtrun-cate, papillose. Achenes subcylindric, 2.5-3 mm, glabrous. Pappus white, ca. 7 mm. Fl. Aug-Sep.

● Montane meadows; ca. 4800 m. Sichuan (Daocheng).


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