Erigeron poliospermus A.Gray

Purple cushion fleabane (en)

Species

Angiosperms > Asterales > Asteraceae > Erigeron

Characteristics

Perennials, 3–15 cm; taprooted, caudices simple or with relatively short and thick branches. Stems erect, sometimes branched, hirsute (hairs unequal), ± minutely glandular. Leaves mostly basal (persistent; petioles prominently ciliate, hairs spreading, thick-based); blades narrowly oblanceolate to spatulate, (20–)30–80 × 2–4(–12) mm, cauline sometimes continuing distally to about midstem, margins entire, usually ciliate, sometimes coarsely so, faces sparsely to densely hirsute, sometimes minutely glandular. Heads 1(–3) (from branches at or proximal to midstem). Involucres 5–9 × 9–20 mm. Phyllaries in 2–3 series, sparsely to densely hirsuto-villous to hirsute, minutely glandular. Ray florets 15–45 or 0; corollas usually pink to bluish purple, sometimes white, 5–14 mm, laminae coiling. Disc corollas (3.5–)4–5.5 mm. Cypselae 2.5–3 mm, 2-nerved, faces densely strigoso-sericeous (obscured); pappi: outer of setae, inner of 20–30 bristles.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 0.15
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 1-5
Soil texture 3-4
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

Flower

Erigeron poliospermus flower picture by Ethan Greer (cc-by-sa)
Erigeron poliospermus flower picture by Ethan Greer (cc-by-sa)

Distribution

Erigeron poliospermus world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:204339-1
WFO ID wfo-0000003332
COL ID 6GPTP
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Erigeron poliospermus f. poliospermus Erigeron poliospermus var. poliospermus Erigeron poliospermus

Lower taxons

Erigeron poliospermus var. disciformis Erigeron poliospermus var. cereus