Erigeron eriocalyx (Ledeb.) Vierh.

Érigéron à une tête (fr), Vergerette à une tête (fr), Vergerette à une fleur (fr), Érigéron à une fleur (fr), Érigéron uniflore (fr)

Species

Angiosperms > Asterales > Asteraceae > Erigeron

Characteristics

Herbs, perennial, 5-25 cm tall, ± caespitose; caudex branched. Stems several, sometimes single, erect or ascending, green or reddish, simple, sometimes branched, hirsute-villous (at least some crosswalls purple in upper part), strigillose, more densely so upward, eglandular. Leaves green, surfaces sparsely hirsute-villous, margin entire, sparsely villous-ciliate (some crosswalls yellow); basal rosulate, withered at anthesis, long petiolate, blade oblanceolate, 1.5-9.5 × 0.2-0.8(-1.3) cm, base attenuate, apex obtuse; cauline 2-8, lower identical to basal, short-winged petiolate, mid and upper sessile, blade lanceolate to linear-lanceolate, 1-5(-7.5) × 0.2-0.8 cm, base ± subclasping, apex acute. Capitula solitary, rarely 2 or 3 in corymbiform synflorescences, 9-14 × 19-25 mm. Involucre hemispheric; phyllaries 3-seriate, apex purple, appressed, ± equaling disk florets, lanceolate to linear-lanceolate, densely hirsute-villous at base (at least some with purple crosswalls), distally sparsely villous to glabrate, eglandular, membranous, apex acuminate, outer 4.2-5.2 × 0.5-0.6 mm, inner 5-9 × 0.6-1 mm, margin narrowly scarious. Ray florets purple, violet, or lilac, rarely white, 6.6-10 mm, tube 2-2.5 mm, lamina ca. 0.5 mm wide, hairy proximally, involute when dry; disk florets yellow, 3.5-4 mm, tube 1.5 mm, limb cylindric, abruptly ampliate, tube and limb hairy, lobes lanceolate, 0.3-0.4 mm, tip pink, anthers and style branches not exserted from corolla. Achenes narrowly oblong, ± compressed, 2-2.5 × ca. 0.6 mm, strigose. Pappus whitish, 2-seriate, outer bristles 0.2-0.4 mm, inner 3.6-4.5 mm. Fl. Jul-Sep.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 0.29
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-10

Usage

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

Cultivation

Mode -
Germination duration (days) 15 - 20
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Erigeron eriocalyx world distribution map, present in China, Kazakhstan, Liberia, and Mongolia

Identifiers

LSID urn:lsid:ipni.org:names:77181589-1
WFO ID wfo-0000072876
COL ID 6GP2V
BDTFX ID 24889
INPN ID 96756
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Erigeron eriocalyx Erigeron korotkyi Erigeron uniflorus subsp. eriocalyx Erigeron alpinus var. eriocalyx