草原狗舌草 cao yuan gou she cao

Senecio praticola Schischkin & Sergievskaya, Sist. Zametki Mater. Gerb. Krylova Tomsk. Gosud. Univ. Kuybysheva 1949(1-2): 28. 1949; S. asiaticus Schischkin & Sergievskaya; S. campestris (Retzius) Candolle var. glabratus Candolle; S. glabellus Candolle (1838), not Poiret (1806); S. integrifolius (Linnaeus) Clairville var. glabratus (Candolle) Cufodontis; S. subdentatus Ledebour var. glabellus Cufodontis.

Herbs, rhizomatous. Stem solitary, erect, 20-40 cm tall, simple, green or purplish at base, glabrous or sparsely arachnoid. Radical leaves present at anthesis; petiole 3.5-4 cm, not winged or inconspicuously narrowly winged; blade ovate, 2-4.5 × 1-2 cm, both surfaces inconspicuously arachnoid or subglabrous, base narrowed into petiole, margin sparsely denticulate or subentire, apex obtuse to rounded. Lower stem leaves similar to basal leaves. Median stem leaves sessile, usually lanceolate, 3-4 × 0.3-0.5 cm, base subamplexicaul, margin entire or denticulate, apex rather acute or obtuse. Upper leaves smaller, linear, apex acuminate or acute. Capitula 2-12, arranged in terminal corymb; peduncles 1.5-2 cm, not bracteate, white arachnoid. Involucres hemispheric-campanulate, 5-8 × 5-7(-10) mm; phyllaries 15 or 16, herbaceous, linear-lanceolate, sparsely arachnoid or rarely subglabrous, apically acuminate. Ray florets 12-20, corolla yellow, tube 3-4 mm; lamina 5-6 × 1.5-2 mm, apically 3-denticulate. Disk florets numerous; corolla yellow, ca. 7 mm, with ca. 4 mm tube and funnelform limb; lobes lanceolate, ca. 1 mm. Anthers linear-oblong, basally obtuse. Style branches ca. 1 mm. Achenes cylindric, 2-2.5 mm, glabrous. Pappus white, ca. 7 mm. Fl. Jun-Jul.

Meadows; 3000-3200 m. N Xinjiang (Altay) [Russia (Siberia)].