武夷蒲儿根 wu yi pu er gen

Herbs, rhizomatous, with leafy stems or subscapigerous. Rhizomes slender, clad in persistent petiole bases. Stems erect or oblique, (6-)10-23 cm tall, slender, simple or rarely branched, sparsely arachnoid in lower part, glabrous above. Radical leaves rosulate, long petiolate; petiole 3-5 cm, basally slightly expanded; blade abaxially purplish red or green, adaxially green, broadly flabelliform or suborbicular, 1.5-2.5 × 1.5-3 cm, papery or subleathery, both surfaces glabrous, palmately 5-7-veined, coarsely dentate or palmately lobed to 1/2, base cordate or truncate; lobes broadly oblong, 5-6 × 6-7 mm, apically 2- or 3-denticulate. Stem leaves 2-4(or 5), similar to radical ones; blade 1.5-2.5 cm, shortly petiolate; petiole slightly expanded and subamplexicaul at base; uppermost leaves sessile, bractlike, oblanceolate to linear, margin 3-5-lobulate or sometimes entire. Capitula usually 1-3, rarely more, arranged in terminal subcorymbs, ca. 2 cm in diam.; peduncles 2-3.5 cm, slender; bracteoles linear, 5-15 mm, margin entire or sometimes 2- or 3-denticulate. Involucres campanulate, hemispheric when flattened, 5-6 × 8-10 mm; phyllaries ca. 13, oblong-lanceolate, 1-1.5 mm wide, herbaceous, sparsely pubescent or subglabrous, inconspicuously 3-veined, margin scarious, apically acute, purplish and ciliate. Ray florets 13 or 14; corolla tube ca. 2 mm; lamina yellow, oblong, 10-11 × 2-3 mm, apically 3-denticulate. Disk florets numerous, 3.5-4 mm, with ca. 1.5 mm tube and campanulate limb; lobes ovate-lanceolate. Anthers oblong, basally obtuse, ca. 1.3 mm. Style branches recurved. Achenes cylindric, ca. 2 mm, glabrous, papillate. Pappus white, 2-3 mm. Fl. Apr-Sep. 2n = 48*.

● Montane meadows, rocky cliffs; 1200-2200 m. Fujian (Chong’an), Jiangxi.

In the protologue of Sinosenecio wuyiensis, the achenes were incorrectly described as sparsely puberulent.