Erigeron watsonii (A.Gray) Cronquist

Watson's fleabane (en)

Species

Angiosperms > Asterales > Asteraceae > Erigeron

Characteristics

Perennials, 3–10 cm; taprooted, caudices sometimes multicipital, branches relatively short and thick, sometimes relatively long and slender. Stems ascending to decumbent-ascending, glabrous, eglandular. Leaves mostly basal (persistent); blades narrowly oblanceolate to spatulate (often folding), 15–60 × 1–5 mm, cauline abruptly reduced distally, margins entire, abaxial faces glabrous, adaxial sparsely strigose, eglandular. Heads 1(–2). Involucres 4–7 × 5–10 mm. Phyllaries in 2–3 series (inner usually with purple margins), glabrous, minutely glandular. Ray florets 13–25, corollas white to pink, 4–6 mm, laminae not coiling or reflexing, spreading. Disc corollas 2.8–4 mm. Cypselae 2–3.2 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 25–35 (straw-colored, dull) bristles.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.03 - 0.1
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 -

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:94252-2
WFO ID wfo-0000138478
COL ID 6H28D
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Asterigeron watsonii Erigeron watsonii Aster watsonii