Erigeron petiolaris Vierh.

Species

Angiosperms > Asterales > Asteraceae > Erigeron

Characteristics

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.
Life form perennial
Growth form herb
Growth support -
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Sexuality hermaphrodite
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Mature width (meter) -
Mature height (meter) 0.05 - 0.28
Root system rhizome
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Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
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Nitrogen fixer -
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Environment

Light -
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Hardiness (USDA) 5-10

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 15 - 20
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Images

Erigeron petiolaris unspecified picture

Distribution

Erigeron petiolaris world distribution map, present in China, Kazakhstan, Kyrgyzstan, Liberia, Mongolia, Tajikistan, and Uzbekistan

Identifiers

LSID urn:lsid:ipni.org:names:77181131-1
WFO ID wfo-0000071364
COL ID 6H247
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Erigeron petiolaris Erigeron pseudoneglectus