Erigeron humilis Graham

Arctic alpine fleabane (en)

Species

Angiosperms > Asterales > Asteraceae > Erigeron

Characteristics

Perennials 2–15(–25) cm; rhizomatous, fibrous-rooted, rhizomes or caudices simple or branched. Stems erect, villoso-hirsute (hair cross walls dark to blackish purple), minutely glandular (conspicuously so proximal to heads). Leaves mostly basal (persistent) and cauline; blades spatulate to spatulate-oblanceolate, 10–50(–80) × 2–7(–11) mm, cauline abruptly reduced distally, margins entire, faces sparsely to moderately villous (hair cross walls dark reddish or purple), sometimes sparsely minutely glandular. Heads 1. Involucres 6–9 × 10–15(–20) mm. Phyllaries in (1–)2(–3) series (usually dark purple), strigoso-hirsute (hair cross walls dark reddish to blackish purple), minutely glandular. Ray florets 50–100(–150); corollas bluish purple to lavender, rarely whitish, 4–6 mm, laminae erect (filiform, 0.3–1 mm wide), not coiling or reflexing. Disc corollas 2.4–3 mm. Cypselae 2.2–2.5 mm, plump, 2-nerved, faces finely strigoso-hirsute; pappi: outer of setae (inconspicuous), inner of 20–30 bristles. 2n = 36.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.02 - 0.21
Root system fibrous-root 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) 4-9

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 -

Images

Erigeron humilis unspecified picture

Distribution

Erigeron humilis world distribution map, present in Canada, Finland, Greenland, Iceland, Norway, Sweden, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:203979-1
WFO ID wfo-0000024999
COL ID 6GP7D
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Erigeron humilis Erigeron unalaschkensis Erigeron uniflorus var. unalaschkensis Erigeron unalaschkensis var. unalaschkensis Erigeron pulchellus var. unalaschkensis