Erigeron tweedyi Canby

Tweedy's fleabane (en)

Species

Angiosperms > Asterales > Asteraceae > Erigeron

Characteristics

Perennials, 4–20 cm; taprooted, caudices multicipital crowns or branches relatively short and thick. Stems erect to ascending or decumbent-prostrate, densely strigose (hairs relatively thin), eglandular. Leaves basal (persistent) and cauline; basal (silvery) blades spatulate, broadly elliptic, 50–250 × 5–13 mm, cauline abruptly reduced distally, margins entire, faces densely strigoso-sericeous (hairs gray-white), eglandular. Heads 1–4. Involucres 4–6 × 9–14 mm. Phyllaries in 3–4 series, finely hirsuto-strigose, sparsely minutely glandular. Ray florets 20–50; corollas blue to purple, sometimes white, 5–9 mm, laminae not coiling or reflexing. Disc corollas 3.1–4.3 mm. Cypselae 2–2.5 mm, 2-nerved, faces strigoso-sericeous; 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 -
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Mature height (meter) -
Root system tap-root
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Nitrogen fixer -
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Environment

Light -
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Hardiness (USDA) 4-9

Usage

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

Cultivation

Mode -
Germination duration (days) 15 - 20
Germination temperacture (C°) -
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Optimum temperature (C°) -
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Images

Erigeron tweedyi unspecified picture

Distribution

Erigeron tweedyi world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:94214-2
WFO ID wfo-0000133678
COL ID 6GQ97
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Erigeron tweedyi