川鄂橐吾 chuan e tuo wu

Senecio wilsonianus Hemsley, Gard. Chron., ser. 3, 38: 212. 1905; Ligularia polycephala (Hemsley) Nakai; L. sibirica (Linnaeus) Cassini var. polycephala (Hemsley) Diels; Senecillis wilsoniana (Hemsley) Kitamura; Senecio cacaliifolius Schultz Bipontinus var. polycephalus (Hemsley) Franchet; S. ligularia J. D. Hooker var. polycephalus Hemsley.

Stem erect, robust, 60-120 cm tall, to 1 cm in diam. at base, shortly pilose. Basal leaves petiolate; petiole 19-51 cm, robust, shortly pilose, base sheathed; leaf blade reniform, 6.5-13 × 11-24 cm, abaxially densely shortly pilose, adaxially glabrous, palmately veined, abaxially with prominent reticulate veins, base cordate, margin densely sharply dentate, apex rounded; sinus ca. 1/3 as long as leaf blade, broad. Middle stem leaves similar but smaller. Distal stem leaves reduced. Synflorescence racemose, 15-34 cm; leaflike bracts filiform; peduncles 1-1.5 cm. Capitula numerous; supplementary bracts subulate. Involucre campanulate to broadly turbinate, 7-8 × 6-7 mm, outside glabrous; phyllaries 7 or 8, in 2 rows, oblong or lanceolate, 2-4 mm wide, apex acute or triangular; inner phyllaries membranous at margin. Ray florets 5 or 6, yellow; lamina oblong, 7-9 × 3-4 mm, apex rounded. Tubular florets numerous, 6-7 mm; tube 2.5-3 mm. Pappus white, as long as tubular corolla. Fl. Jul-Sep.

● Grassy slopes, forest understories; 1600-2100 m. W Hubei, E Sichuan.