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

23. Erigeron petiolaris Vierhapper, Beih. Bot. Centralbl., Abt. 2. 19: 522. 1906.

柄叶飞蓬 bing ye fei peng

Erigeron pseudoneglectus Popov.

Herbs, perennial, 5-28 cm tall, sometimes caespitose; rhizome short. Stems several, erect, simple, green or reddish, moderately to densely hirsute-villous, sparsely strigillose. Leaves: petiole, margin, and surfaces hirsute-villous, sometimes glabrate or only margin ciliate; basal present at anthesis, long petiolate, blade oblanceolate or oblanceolate-spatulate, 1.5-2 × 0.2-0.4 cm, 3-veined, base attenuate, margin entire or sometimes 2-4-serrulate, apex obtuse, mucronate; cauline 3-12, 0.7-7.2 × 0.1-0.8 cm, lower petiolate, blade oblanceolate, apex obtuse or acuminate, upper sessile, lanceolate, base subclasping, apex acute. Capitula solitary or 2 or 3 in corymbose synflorescences, 1-1.5 cm in diam.; peduncles slender; bracts 1-3, linear or subulate. Involucre hemispheric, 3-4 × 8-10 mm; phyllaries 3-seriate, green, apex purplish, linear-lanceolate, ca. 0.5 mm wide, abaxially hirsute-villous, shorter than disk, apex acuminate, outer ca. 1/2 as long as inner, inner 3-4 mm, margin narrowly scarious. Ray florets 2- or 3-seriate, pink, rarely white, 8-9 mm, tube ca. 2.5 mm, sparsely hairy, lamina ca. 0.4 mm wide, involute when dry; disk florets yellow, ca. 4 mm, hairy, tube ca. 1.5 mm, limb cylindric-funnelform, lobes lanceolate, ca. 0.5 mm, tip purple, anthers and style branches not exserted from corolla. Achenes (immature) oblong, compressed, ca. 2 mm, strigose. Pappus 2-seriate, outer bristles ca. 0.5 mm, inner ca. 4 mm (immature). Fl. Jul-Sep.

Alpine or subalpine meadows, rocky slopes; 2700-3100 m. N Xinjiang (Qinghe) [Kazakhstan, Russia (N Siberia), Uzbekistan].


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