Erigeron lassenianus Greene

Mt. lassen fleabane (en)

Species

Angiosperms > Asterales > Asteraceae > Erigeron

Characteristics

Perennials, 9–20(–35) cm; taprooted, caudices essentially simple. Stems ascending to decumbent or prostrate, loosely strigose to hirtellous (hairs appressed-ascending to spreading, even-width, basal cells inclined), usually minutely glandular distally. Leaves basal (usually persistent) and cauline; basal blades usually narrowly oblanceolate to linear, rarely narrowly spatulate, 50–120(–150) × 3–6(–9) mm, cauline blades relatively unreduced distally, margins entire, 1–3-nerved, faces sparsely to moderately hirtellous to pilose, often minutely glandular. Heads (1–)3–7. Involucres 4–5.5 × 6–10(–12) mm. Phyllaries in 2–3 series (commonly strongly keeled to nearly folded), moderately hirsuto-villous or villous, densely minutely glandular. Ray (pistillate) florets 12–36 or 0; corollas pink to lavender or white, 4.5–8 mm, laminae slightly coiling or not. Disc corollas 2.5–3.5 mm. Cypselae 1.5–2.3 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 12–24 bristles.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.2
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) -

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 lassenianus world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:93883-2
WFO ID wfo-0000013711
COL ID 6H2B6
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Erigeron lassenianus Erigeron flexuosus Erigeron lassenianus var. lassenianus

Lower taxons

Erigeron lassenianus var. deficiens