蒲枝狗舌草 pu zhi gou she cao

Senecio stolonifer Cufodontis, Repert. Spec. Nov. Regni Veg. Beih. 70: 100. 1933.

Herbs, stoloniferous, rhizomatous. Stolons slender, flagelliform, with elongated internodes and very small leaves. Stem solitary, erect, leafy, 30-60(-80) cm tall, floccose-tomentose, ± glabrescent. Radical leaves several, rosulate, petiolate, usually present at anthesis; petiole 1.5-12 cm, rather broad, floccose-tomentose, fulvous hirtellous; blade adaxially green, broadly ovate or ovate-spatulate, 5-8 × 3-5 cm, papery, abaxially arachnoid or floccose-tomentose, adaxially thinly arachnoid-tomentose and glabrescent, lateral veins 6, base broadly cuneate or subcordate and narrowly decurrent into petiole, margin subentire or remotely shallowly repand-dentate, apex obtuse to rounded, apiculate. Lower and median stem leaves similar but smaller, more shortly petiolate to subsessile, ovate to lanceolate, 3-6 × 0.5-1.5 cm. Upper leaves lanceolate to linear, sessile, bractlike. Capitula 2.5-3 cm in diam., 5-15 in terminal subumbelliform corymbs or compound corymbs; peduncles 1.5-3.5 cm, white arachnoid, fulvous puberulent, with a basal subulate bract, not bracteolate. Involucres broadly campanulate, 7-8 × 5-7 mm, not calyculate; phyllaries ca. 20, linear-lanceolate, 1-1.5 mm wide, herbaceous, with submembranous margin, ± glabrous, apex acuminate and sparsely puberulent. Ray florets 11-13, corolla tube ca. 5 mm; lamina oblong, ca. 9 × 2-2.5 mm, 4-veined, apically 3-denticulate, obtuse. Disk florets numerous; corolla yellow, ca. 7 mm, with 4-5 mm tube and funnelform limb; lobes ovate-lanceolate, ca. 1 mm, apically acute, papillose. Anthers ca. 1.7 mm, basally obtuse to rounded, appendages ovate-lanceolate. Style branches ca. 0.5 mm. Achenes cylindric, 2.5-3 mm, glabrous. Pappus white, ca. 7 mm. Fl. Apr-Jun.

● Wet places, streamsides; 1400-2800 m. SW Sichuan, NW Yunnan.