Erigeron acris L.

Blue fleabane (en), Érigeron âcre (fr), Érigéron âcre (fr), Vergerette âcre (fr)

Species

Angiosperms > Asterales > Asteraceae > Erigeron

Characteristics

Biennial or perennial 3–8 dm, ± hairy, or the lvs subglabrous; lowest lvs mostly oblanceolate, to 10 × 1.5 cm, the cauline ones smaller, narrowly lanceolate to ovate; heads several or many on arcuate or obliquely ascending peduncles; invol 5–12 mm, finely glandular and often ± hirsute, the bracts very narrow and long-attenuate; pistillate fls numerous, in several series, the outer with narrow and inconspicuous, pinkish to white, erect rays equaling or slightly exceeding the pappus, not over 5 × 0.5 mm; inner pistillate fls merely filiform-tubular, without rays; disk-fls usually fewer than the pistillate fls; pappus copious, simple or obscurely double. Circumboreal, s. to n. Me., n. Mich. and n. Minn. Our plants, as here described, are the boreal N. Amer. and Siberian var. kamtschaticus (DC.) Herder (E. asteroides and E. droebachensis, both misapplied)
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination
Spread anemochory
Mature width (meter) 0.3
Mature height (meter) 0.13 - 0.55
Root system fibrous-root rhizome tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 7-9
Soil humidity 3-6
Soil texture 2-5
Soil acidity 3-9
Soil nutriment -
Hardiness (USDA) 2-7

Usage

Uses fodder medicinal
Edible -
Therapeutic use Tumor (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 15 - 20
Germination temperacture (C°) 3
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Erigeron acris habit picture by Daniel Bourget (cc-by-sa)
Erigeron acris habit picture by Philippe Bissières (cc-by-sa)
Erigeron acris habit picture by Sabrina von Martinez (cc-by-sa)

Leaf

Erigeron acris leaf picture by OutSa (cc-by-sa)
Erigeron acris leaf picture by Dorian Köse (cc-by-sa)
Erigeron acris leaf picture by Emanuele Santarelli (cc-by-sa)

Flower

Erigeron acris flower picture by Tom Jakob (cc-by-sa)
Erigeron acris flower picture by OutSa (cc-by-sa)
Erigeron acris flower picture by Caloin Frederic (cc-by-sa)

Fruit

Erigeron acris fruit picture by Ivan Yushin (cc-by-sa)
Erigeron acris fruit picture by parramon marta (cc-by-sa)
Erigeron acris fruit picture by Philippe Bissières (cc-by-sa)

Distribution

Erigeron acris world distribution map, present in Armenia, Austria, Azerbaijan, Belarus, Canada, Switzerland, China, Czech Republic, Germany, Spain, Estonia, Finland, France, United Kingdom of Great Britain and Northern Ireland, Georgia, Greece, Croatia, Hungary, India, Iran (Islamic Republic of), Italy, Japan, Kazakhstan, Kyrgyzstan, Liberia, Liechtenstein, Lithuania, Latvia, Moldova (Republic of), Mongolia, Netherlands, Norway, Nepal, Pakistan, Poland, Korea (Democratic People's Republic of), Portugal, Romania, Russian Federation, Serbia, Slovakia, Slovenia, Sweden, Tajikistan, Turkmenistan, Ukraine, United States of America, Uzbekistan, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:93523-2
WFO ID wfo-0000085388
COL ID 6GNFV
BDTFX ID 85324
INPN ID 611688
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Aster villarsii Erigeron villarsii Erigeron angustatus Erigeron zosonius Erigeron intermedius Erigeron lapiluteus Erigeron alpinus Erigeron philadelphicus Erigeron yellowstonensis Erigeron pseudoacris Erigeron vulgaris Erigeron asteroides Erigeron umbellatus Aster erigeron Tessenia vulgaris Trimorpha vulgaris Trimorpha acris Erigeron shepardii Erigeron orientalis Inula acris Erigeron scaber Erigeron glaberrimus Erigeron muelleri Erigeron elongatus Erigeron carpaticus Erigeron corymbosus Erigeron acris var. acris Erigeron acris var. fuscomarginatus Trimorpha acris var. acris Erigeron acris subsp. acris Erigeron crispulus Trimorpha hispanica Erigeron acris var. pseudoelongatus Erigeron glabratus var. minor Erigeron acris

Lower taxons

Erigeron acris var. kamtschaticus Erigeron acris subsp. brachycephalus Erigeron acris subsp. mesatlanticus Erigeron acris subsp. droebachiensis Erigeron acris subsp. podolicus Erigeron acris subsp. botschantzevii Erigeron acris subsp. angulosus Erigeron acris subsp. politus Erigeron acris subsp. pycnotrichus Erigeron acris subsp. phaeocephalus Erigeron acris subsp. staintonii Erigeron acris subsp. arctophilus Erigeron acris var. khasianus