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

40. Sinosenecio nanchuanicus Z. Y. Liu, Y. Liu & Q. E. Yang, Bot. Stud. 52: 105. 2011.

南川蒲儿根 nan chuan pu er gen

Herbs, scapigerous; stolons absent. Rhizomes 3-4 mm in diam. Stems solitary, erect, purple, scapiform, 10-12 cm tall, simple, glabrescent, with several small spatulate, leaflike bracts in upper part. Leaves several, radical, long petiolate; petiole 1-4 cm, pubescent, base expanded, not auriculate; blade abaxially purple, adaxially dark green, orbicular or suborbicular in outline, 0.8-1.7 × 0.8-2 cm, subleathery, nitid, abaxially sparsely pubescent or glabrescent on midvein, adaxially pubescent, palmately veined, veins impressed adaxially, base shallowly cordate, shallowly regularly 5-7-lobed with broadly deltoid or rounded, entire, apiculate lobules, margin ciliate, apex acute. Capitula solitary, terminal; peduncles sparsely pubescent or glabrescent in upper part. Involucres campanulate, ca. 7 × 9 mm, ecalyculate; phyllaries 13, green at base, purple in upper part, oblong-lanceolate, ca. 6 × 1.5 mm, herbaceous, sparsely pubescent, apex fimbriate-ciliate and acuminate or acute. Ray florets 14 or 15; corolla tube ca. 1.5 mm, glabrous; lamina yellow, oblong-elliptic, ca. 9 × 1.5 mm, 4-veined, apically 3-denticulate. Disk florets many; corolla ca. 4 mm, tube ca. 3 mm, limb campanulate; lobes ovate-lanceolate. Anthers ca. 1.5 mm, base obtuse, appendages ovate-oblong. Style branches ca. 0.5 mm, apex truncate. Achenes cylindric, ca. 1 mm, smooth, glabrous. Pappus white, ca. 2.5 mm. Fl. May-Jun, fr. Jun. 2n = 144*.

● Streamsides, rocky cliffs under waterfalls; 1200-1700 m. Chongqing (Nanchuan).

Sinosenecio nanchuanicus resembles S. confervifer in posture and leaf shape but is distinguished by the leaf blade smaller, adaxially dark green, the veins impressed adaxially, and the capitula strictly solitary.


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