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

29. Senecio lhasaensis Y. Ling ex Y. L. Chen, S. Yun Liang & K. Y. Pan, Acta Phytotax. Sin. 19: 90. 1981.

拉萨千里光 la sa qian li guang

Herbs, dwarf, perennial. Stems solitary or sometimes paired, erect, 2-6 cm tall or nearly obsolete, sparsely arachnoid. Basal leaves rosulate, petiolate, present at anthesis; petiole 1-4 cm, basally expanded and subamplexicaul; blade oblanceolate-spatulate, 2-5 × 0.7-2 cm, papery, abaxially densely white tomentose, adaxially sparsely arachnoid on midvein and glabrescent, margin lyrate-pinnatifid with ovate or ovate-triangular terminal lobe and 6-8 ovate-oblong or subtriangular, obtuse, 1- or 2-dentate lateral lobes, or sometimes subentire, apex obtuse. Stem leaves lyrate-pinnatifid, similar to basal leaves; uppermost leaves smaller. Capitula radiate, 2 or 3 in a terminal corymb or solitary, shortly pedunculate or subsessile. Involucres campanulate, 8-9 × 6-8 mm, calyculate; bracts of calyculus 3 or 4, linear-lanceolate or linear, 5-6 mm, sparsely arachnoid, fimbriate on margin, apically acuminate; phyllaries ca. 20, linear-lanceolate, 8-9 × 1.5-2 mm, herbaceous, sparsely arachnoid, margin narrowly scarious, apically acuminate, blackish brown and ciliate on upper margins and apex. Ray florets 13 or 14; corolla tube ca. 3.5 mm; lamina yellow, oblong, ca. 7.5 × 2.5 mm, 4-veined, apically obtuse, 3-denticulate. Disk florets many; corolla yellow, ca. 6.5 mm, with ca. 3 mm tube; lobes ovate-lanceolate, ca. 1 mm, apically acute, papillose. Anthers ca. 2 mm, basally subacutely auriculate, appendages ovate; antheropodia rather slender, basally slightly dilated. Style branches ca. 1.2 mm. Achenes cylindric, ca. 2.5 mm, glabrous. Pappus white, ca. 6 mm. Fl. Aug-Sep.

● Alpine meadows; 4000-5400 m. Xizang.


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