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

54. Senecio stauntonii Candolle, Prodr. 6: 363. 1838.

闽粤千里光 min yue qian li guang

Herbs, perennial, weakly erect or subscandent, rhizomatous. Stems erect or weakly ascending, flexuous, usually 30-60 cm tall, branched, angular, glabrous. Basal leaves soon withered; stem leaves numerous, sessile; blade ovate-lanceolate to narrowly oblong-lanceolate, 5-12 × 1-4 cm, leathery, abaxially laxly pilose mainly on veins to glabrous, adaxially scattered pilose to glabrous, pinnately veined, lateral veins 14-18, base auriculate; auricle entire to dentate or shortly lacerate, semiamplexicaul; blade margin revolute and shallowly obscurely to distinctly, rather remotely sinuate-dentate, rarely pinnatisect toward base, apex acute-acuminate or attenuate; upper leaves smaller and relatively narrower, otherwise similar. Capitula radiate, few to rather numerous, arranged in lax terminal corymbs; peduncles 1.5-3.5 cm, glabrous or sparsely puberulent, basally bracteate, with a few linear-subulate bracteoles. Involucres campanulate, ca. 7 × 5-7 mm, calyculate; bracts of calyculus 6-8, linear-subulate, 2-3 mm, puberulent, apically acute; phyllaries 13, linear-lanceolate, 1-1.5 mm wide, herbaceous, glabrous or sparsely puberulent near apex, margin narrowly scarious, acuminate, acute and shortly ciliate on upper margins and apex. Ray florets 8-13; corolla tube ca. 3.5 mm, pubescent near apex; lamina yellow, oblong, ca. 8 × 2.5 mm, 4-veined, apically obtuse, 3-denticulate. Disk florets many; corolla yellow, ca. 7 mm, with ca. 3 mm tube and funnelform limb; lobes ovate-lanceolate, ca. 1.2 mm, apically acute, papillose. Anthers ca. 2.3 mm, basally shortly caudate, tails to 0.25 × as long as antheropodia, slender; appendages ovate-oblong; antheropodia rather elongated, slightly dilated in lower half. Style branches ca. 1.2 mm. Achenes cylindric, ca. 3 mm, pubescent. Pappus white, ca. 5.5 mm. Fl. Oct-Nov.

● Thickets, open forests, limestone hills, dry slopes, ravines; ca. 600 m. Guangdong, Guangxi, Hunan.


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