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FOC | Family List | FOC Vol. 20-21 | Asteraceae | Tephroseris

4. Tephroseris pseudosonchus (Vaniot) C. Jeffrey & Y. L. Chen, Kew Bull. 39: 272. 1984.

黔狗舌草 qian gou she cao

Senecio pseudosonchus Vaniot, Bull. Acad. Int. Géogr. Bot. 11: 349. 1902.

Herbs, rhizomatous. Stem solitary, erect, 50-70 cm tall, rather stout, simple, sparsely arachnoid when young, glabrescent. Radical leaves usually present at anthesis, several, rosulate, long petiolate; petiole 3-17 cm, winged, glabrescent, basally expanded; blade ovate-elliptic to oblanceolate, 6-15 × 2.5-4 cm, papery, both surfaces at first sparsely arachnoid, glabrescent, pinnately veined, lateral veins 10-12, base cuneately narrowed into petiole, margin repand with mucronulate teeth, apex obtuse to rarely acute. Lower stem leaves similar to radical leaves. Median leaves sessile, oblong or oblong-lanceolate, 6-15 × 1-3 cm, smaller upward, base auriculate and amplexicaul, apex obtuse to acute. Upper leaves linear-lanceolate, bractlike. Capitula 2.5-3 cm in diam., 6-12 arranged in simple or compound subumbelliform terminal corymbs; peduncles 1.5-4.5 cm, sparsely pubescent, basally bracteate, not bracteolate, or with a linear-subulate bract in upper part, slightly dilated at apex. Involucres broadly campanulate or hemispheric, 5-6 × 6-7 mm, not calyculate; phyllaries 20-25, lanceolate, ca. 1.5 mm wide, herbaceous, with membranous margin, sparsely pubescent or glabrous, apically acuminate. Ray florets 13-15, corolla tube ca. 4 mm, glabrous; lamina yellow, oblong, ca. 10 × 2.5-3 mm, 4-veined, apically obtuse, 3-denticulate. Disk florets many; corolla yellow, 7-7.5 mm, with 3.8-4 mm tube and campanulate limb; lobes ovate-triangular, ca. 1.2 mm, apically papillose. Anthers linear-oblong, ca. 2 mm, basally obtuse, appendages ovate-lanceolate; style branches ca. 0.5 mm. Achenes cylindric, 2-2.5 mm, glabrous. Pappus white, 7-7.5 mm. Fl. Apr-May.

● Streamsides, wet meadows; 300-400 m. Guizhou, Hubei, Hunan, Shaanxi, Shanxi.


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