黑缘千里光 hei yuan qian li guang

Herbs, perennial, rhizomatous. Stem solitary, ascending, then erect, 10-25 cm tall, simple, glabrous. Basal leaves mostly present at anthesis, long petiolate; petiole 2-6 cm, slender, glabrous or sparsely pilose, basally dilated but not auriculate; blade broadly ovate to suborbicular, 1.5-3 × 2.5-4 cm, thinly papery, glabrous, pinnately veined, base weakly cordate or subtruncate, margin irregularly coarsely dentate, apex rounded to shortly obtuse-acuminate. Lower stem leaves similar to basal leaves; petiole with small basal auricle; median stem leaf petiole with basal auricle coarsely dentate, semiamplexicaul; blade ovate to suborbicular, 5-8 × 1.5-3 cm, base truncate and suddenly contracted into winged, denticulate, basally conspicuously auriculate petiole, margin acutely dentate, apex acute-acuminate. Upper leaves sessile, gradually smaller upward, lanceolate, base auriculate, margin irregularly dentate or lacerate, apex acuminate. Capitula radiate, 3-5 in lax terminal corymb; peduncles 5-15 mm, sparsely fulvous puberulent; bracteoles 2 or 3, linear. Involucres campanulate or hemispheric, 6-8 × 6-10 mm, calyculate; bracts of calyculus 8-10, linear, 3-6 mm, apically acute, dark at apex and on upper margins; phyllaries 15-18, linear-lanceolate, 6-8 × 1-1.5 mm, herbaceous, sparsely fulvous puberulent, blackish brown at apex and on margins, apically acuminate. Ray florets ca. 8; corolla tube ca. 3 mm; lamina yellow, oblong, 9-10 × ca. 2.5 mm, 4-veined, apically 3-denticulate. Disk florets many; corolla yellow, ca. 8 mm, with ca. 3.5 mm tube and funnelform limb; lobes ovate-lanceolate, ca. 1.3 mm, apically acute, papillose. Anthers ca. 2.5 mm, basally obtuse-auriculate, appendages ovate-lanceolate; antheropodia rather short, basally slightly dilated. Style branches ca. 1.2 mm. Achenes cylindric, ca. 2 mm, glabrous. Pappus white, ca. 6 mm. Fl. Aug.

● Alpine meadows; ca. 4400 m. Sichuan (Songpan).