Erigeron petrophilus Greene

Rockloving erigeron (en)

Species

Angiosperms > Asterales > Asteraceae > Erigeron

Characteristics

Perennials, 10–20(–30) cm; taprooted, caudices woody, branches rhizomelike. Stems usually decumbent-ascending, sometimes nearly erect, sparsely to densely white-villous (hairs loose, thin, often crinkly) or sparsely hispido-pilose (hairs usually stiff, spreading, sometimes antrorsely ascending or appressed; var. viscidulus), usually densely minutely glandular at least distally, sometimes eglandular or obscurely glandular (var. viscidulus). Leaves cauline; blades narrowly oblong to oblanceolate, 10–25 × 1–5 mm, usually even-sized, margins entire, ciliate, faces sparsely to densely villous to hirsuto-villous, usually densely minutely glandular, sometimes eglandular or obscurely glandular (var. viscidulus). Heads (discoid) (1–)2–5(–10) in corymbiform arrays. Involucres 5.5–7(–8) × 8–12 mm. Phyllaries in 3–5 series (sometimes purplish apically), usually glabrous, sometimes with spreading hairs, densely glandular. Ray (pistillate) florets 0. Disc corollas 4–6 mm (throats slightly indurate, not inflated). Cypselae (2–)2.5–3 mm, 2-nerved, glabrous; pappi: outer of setae, inner of 22–30(–35) bristles.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3
Root system rhizome tap-root
Rooting depth (meter) 0.3
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 3-6
Soil humidity 2-4
Soil texture 3-4
Soil acidity 5-9
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 -

Images

Erigeron petrophilus unspecified picture

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:307784-2
WFO ID wfo-0000088159
COL ID 6GPS4
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Erigeron petrophilus Erigeron petrophilus var. petrophilus

Lower taxons

Erigeron petrophilus var. viscidulus Erigeron petrophilus var. sierrensis