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

12. Sinosenecio yilingii Y. Liu & Q. E. Yang, Bot. Stud. 51: 270. 2010.

艺林蒲儿根 yi lin pu er gen

Herbs, subscapigerous. Rhizome 2-3 mm in diam. Stems solitary or sometimes several, erect, 10-40 cm tall, simple, densely sericeous at base, sparsely sericeous or glabrescent in upper part. Leaves several, both radical and stem leaves present. Radical leaves usually 1-3, long petiolate; petiole 4-9 cm, densely sericeous at base, sparsely so or glabrescent in upper part; blade abaxially pale green, adaxially green to dark green, shiny, reniform or broadly ovate, 1.7-5.5 × 2-6.5 cm, thinly leathery to membranous, glabrous or very sparsely pubescent on both surfaces, palmately veined, base cordate or deeply so, margin repand or dentate with mucronulate teeth, apex obtuse or sometimes acute. Stem leaves 2-5, smaller, with shorter petioles. Capitula solitary, terminal, 2.5-3 cm in diam.; peduncle sparsely sericeous or glabrescent in lower part, densely sericeous in upper part. Involucre obconic, 7-10 × 5-7 mm, not calyculate; phyllaries 11-13, green, oblong or oblong-lanceolate, 1.5-2.5 mm wide, herbaceous, subglabrous, apex acute or acuminate, fimbriate-ciliate. Ray florets ca. 13; corolla tube ca. 2.5 mm, glabrous; lamina yellow, oblong-elliptic, ca. 10 × 3 mm, 6- or 7-veined, apically 3-dentate. Disk florets many; corolla yellow, ca. 4 mm, with ca. 3 mm tube and campanulate limb; lobes ovate-lanceolate. Anthers ca. 2 mm, base obtuse, appendages ovate-oblong. Style branches ca. 1 mm. Achenes obovoid-cylindric, ca. 1.5 mm, smooth, glabrous. Pappus absent. Fl. May-Jun, fr. Jun-Jul. 2n = 60*.

● Deciduous broad-leaved forests; 2100-2200 m. Sichuan (Baoxing).

Sinosenecio yilingii resembles S. homogyniphyllus but is readily distinguishable by the presence of 2-5 stem leaves, the adaxially shiny leaf blades, and the strictly solitary capitula. They are also somewhat different in phenology when they grow together. At the type locality of S. yilingii, both species occur in the same ravine. However, individuals of S. yilingii usually grow in shaded places along forest margins or on streamside rocks and flower in May and June, while those of S. homogyniphyllus prefer more open, sunny places and flower in June and July.


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