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

9. Sinosenecio subrosulatus (Handel-Mazzetti) B. Nordenstam, Opera Bot. 44: 51. 1978.

莲座蒲儿根 lian zuo pu er gen

Senecio subrosulatus Handel-Mazzetti, Acta Horti Gothob. 12: 293. 1938.

Herbs, subscapigerous. Rhizomes procumbent, slender, ca. 3 mm in diam., clad in scalelike persistent petiole bases. Stems solitary, erect, or ascending in lower part, scapiform, 20-35 cm tall, at first arachnoid-tomentose, glabrescent to subglabrous, simple. Leaves radical or subradical, rosulate, long petiolate; petiole 6-8 cm, slender, densely arachnoid-tomentose, glabrescent to glabrous, basally expanded; blade adaxially green or dark green, reniform, 4-9 × 5-8 cm, membranous, abaxially at first grayish or fulvous arachnoid, ± glabrescent, adaxially glabrescent, base cordate, margin subentire, repand or sometimes dentate with deltoid mucronulate teeth. Capitula 1.5-2 cm in diam., 2-5 in lax terminal corymbs; peduncles 1-6 cm, slender, sparsely arachnoid and puberulent, bracteate at base and 2- or 3-bracteolate in upper part; bracts and bracteoles linear-subulate or linear. Involucres cylindric, obconic or campanulate when flattened, 5-8 × 3-5 mm, not calyculate. Phyllaries ca. 10, lanceolate or oblong-lanceolate, 5-7 × 1-1.5 mm, herbaceous, glabrous or sparsely pubescent at base, margin narrowly scarious, apically acute, dark purple and ciliate. Ray florets 8-10; corolla tube 4.4-5 mm; lamina yellow, linear-oblong, 10-11 × 1.5-2 mm, 4-veined, apically 3-denticulate. Disk florets numerous; corolla yellow, 8-9 mm, with 4-4.5 mm tube and campanulate limb; lobes oblong-lanceolate, ca. 1.5 mm, apically acute. Anthers linear-oblong, ca. 3 mm, base obtuse to rounded, appendages ovate-lanceolate. Style branches ca. 1.5 mm. Achenes cylindric, ca. 2.8 mm, smooth, glabrous. Pappus white, 8-9 mm. Fl. Jun-Jul, fr. Jul-Aug. 2n = 60*.

● Woods, grassy slopes; 2700-4100 m. S Gansu, Sichuan.


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