Erigeron radicatus Hook.

Taproot fleabane (en)

Species

Angiosperms > Asterales > Asteraceae > Erigeron

Characteristics

Perennials, (1–)2–6(–12) cm; taprooted, caudices branches relatively short, thick. Stems erect, strigose to sparsely or densely short-villous (hairs loosely appressed to ascending or spreading), eglandular. Leaves mostly basal (persistent) (eciliate or weakly ciliate proximally); blades 1-nerved linear to narrowly oblanceolate or subspatulate, (5–)10–50(–60) × 0.8–2.5 mm (bases gradually narrowing), margins entire (apices obtuse to rounded), abaxial faces glabrate or glabrous, shiny, adaxial sparsely, loosely strigose, eglandular; cauline mostly on proximal 1 / 2 – 1 / 3 of stems (absent in some high elevation forms), abruptly or gradually reduced distally. Heads 1. Involucres (3–)4–6(–8) × (5–)8–12(–15) mm. Phyllaries in 2–3(–4) series (subequal), villosulous to villoso-hirsutulous (hairs usually with purplish cross walls at least in basal cells), minutely glandular apically or eglandular. Ray florets (12–)20–44(–85); corollas white, less commonly purplish, 4–7(–8) mm, laminae coiling. Disc corollas (2–)2.5–3.5(–4) mm. Cypselae 2.1–2.5 mm, 2-nerved, faces sparsely strigose; pappi: outer of scales, inner of (6–)7–11 (readily falling) bristles.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.02 - 0.06
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) 5-7

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°) -29
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:204407-1
WFO ID wfo-0000011656
COL ID 6GPT8
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Erigeron radicatus Erigeron macounii Erigeron huberi