梵净蒲儿根 fan jing pu er gen

Herbs, subscapigerous. Rhizomes ca. 3 mm in diam., clad in persistent petiole bases. Stems solitary, erect, 5-30 cm tall, simple, densely white arachnoid-tomentose, ± glabrescent. Radical leaves several, rosulate, long petiolate; petiole 1.5-7 cm, densely to sparsely tomentose, basally slightly expanded; blade adaxially whitish or pale green, suborbicular or pentagonal, 1-6 × 1-6 cm, abaxially densely white tomentose, adaxially sparsely white arachnoid and shortly pilose, obscurely palmately veined, base cordate, margin shallowly 5-lobed or angled or shallowly lobed with mucronulate teeth, apex rounded-obtuse. Stem leaves 1 or 2, small, shallowly lobed, shortly petiolate. Capitula 1.5-2 cm in diam., 2-10 or more, arranged in at first contracted terminal umbelliform corymbs; peduncles short, with a small basal leaflike bract and few small linear bracteoles. Involucres campanulate, 4-6 × ca. 6 mm, not calyculate; phyllaries 17, broadly lanceolate or lanceolate, 1.5-2 mm wide, herbaceous, inconspicuously 3-veined, apically acuminate or acute, marginally and apically reddish purple and ciliate. Ray florets ca. 13, uniseriate; corolla tube 0.5-1 mm, glabrous; lamina yellow, oblong, 3-4 mm, 4-veined, apically 3-denticulate, obtuse. Disk florets: corolla yellow, ca. 2.5 mm, with ca. 1 mm tube and campanulate limb; lobes lanceolate, 0.5-1 mm, acute. Anthers 1-1.5 mm, basally obtuse to rounded, appendages ovate-lanceolate. Ovary cylindric, ca. 0.8 mm, smooth, glabrous; style branches 0.7-0.8 mm. Pappus white, shorter than corolla. Fl. May-Jun, fr. Jul. 2n = 48*.

● On rocks, roadsides, shaded places; 1400-2500 m. Chongqing (Wulong), Guizhou (Jiangkou, Songtao).

Sinosenecio fanjingshanicus is similar to S. septilobus in the leaf blade abaxially white tomentose but differs in the leaf blade adaxially whitish or pale green, hardly divided, repand, or irregularly shallowly lobed.