51. Parasenecio palmatisectus (Jeffrey) Y. L. Chen, Fl. Reipubl. Popularis Sin. 77(1): 82. 1999.
掌裂蟹甲草 zhang lie xie jia cao
Plants erect, 50-100 cm tall. Rhizomes robust, with numerous tomentose fibrous roots. Stem solitary, striate. Leaves long petiolate; lower leaves fallen by anthesis; petiole not winged, 4-7 cm, sparsely shortly pubescent or subglabrous; median leaf blade abaxially pale green or gray-green, adaxially green, broadly ovate-orbicular or pentagonal-cordate, 5-14 × 7-14 cm, abaxially white crisped-hairy or only pubescent on veins, adaxially sparsely adpressed shortly hairy or glabrous, pinnate-palmately 5-7-divided; lobes oblong, oblong-lanceolate, or spatulate, rarely linear, 2-9 × 2-4 cm, pinnately lobed, or unequally 2-4-denticulate; terminal lobe larger, lateral lobes narrow and small. Upper leaves smaller, same as middle leaves, shorter petiolate. Capitula many, arranged in terminal racemes or lax panicles, spreading or pendulous after anthesis; peduncles 3-5(-7) mm, with 1 or 2 linear bractlets. Involucres cylindric, 8-10 × 2.5-3 mm; phyllaries 4, green or sometimes becoming purple, linear-oblong, margin narrowly scarious, apically obtuse. Florets 4 or 5, rarely 6 or 7; corolla yellow, 8-12 mm; tube slender, ca. 3 mm; limb narrowly campanulate, lobes ovate-lanceolate. Anthers exserted from corolla, basally caudate. Style branches excurved, apically truncate, papillose. Achenes cylindric, 5-6 mm, glabrous, ribbed. Pappus white, 5-6 mm. Fl. Jul-Aug, fr. Sep-Oct.
Forest understories, forest margins, thickets on slopes; 2400-3800 m. SW and W Sichuan, E Xizang, NW Yunnan [Bhutan].
