长白狗舌草 chang bai gou she cao

Senecio phaeanthus Nakai, Bot. Mag. (Tokyo) 31: 110. 1917; S. birubonensis Kitamura; S. fauriei H. Léveillé (1910), not S. fauriae Franchet (1888); S. integrifolius (Linnaeus) Clairville subsp. fauriei Kitamura; Tephroseris birubonensis (Kitamura) B. Nordenstam.

Herbs, rhizomatous. Stem solitary, erect, subscapiform, 13-45 cm tall, simple, sparsely arachnoid and pubescent, ± glabrescent after anthesis. Radical leaves few to several, present at anthesis, rosulate; petiole 2-6(-8) cm, densely arachnoid and pubescent, not winged, basally slightly expanded; blade ovate-oblong or elliptic, 6-13 × 2-4 cm, papery, both surfaces arachnoid and fulvous pubescent, somewhat glabrescent, pinnately veined, lateral veins 10-14, obscure, margin irregularly sinuate-serrate or dentate with mucronulate teeth, apex rounded. Stem leaves few, progressively smaller upward; lower and median oblong, with winged petioles or sessile, lanceolate, sparsely arachnoid, glandular pubescent, margin subentire or mucronulate-serrate, apex obtuse to acute or acuminate. Capitula 1.8-2.5 cm in diam., 2-6(-8) arranged in terminal umbelliform corymbs; peduncles 1.5-4(-6) cm, sparsely arachnoid, densely glandular with fulvous hairs, basally bracteate, not bracteolate. Involucres campanulate, 7-8 × 7-9 mm, not calyculate; phyllaries 18-20, lanceolate, ca. 1 mm wide, herbaceous, purple and glandular ciliate at margin in upper part, sparsely arachnoid and fulvous puberulent to glabrescent, margin narrowly scarious, apically acute-acuminate. Ray florets ca. 13; corolla tube 2.5-3 mm; lamina yellow, oblong, ca. 11 × 2-2.5 mm, 4-veined, apically 3-denticulate. Disk florets many; corolla yellow, with fuscous-purplish lobes, ca. 6.5 mm, with 2.5-3 mm tube and funnelform limb; lobes ovate-lanceolate, ca. 1.2 mm, apically acute, papillose. Anthers ca. 2 mm, basally obtuse, appendages ovate-lanceolate. Style branches ca. 1 mm. Achenes cylindric, 3-3.5 mm, sparsely pubescent to subglabrous. Pappus white, ca. 6 mm. Fl. Jul-Aug.

Rocky montane slopes; 2000-2500 m. Jilin (Changbai Shan) [Korea].