Erigeron arizonicus A.Gray

Arizona fleabane (en)

Species

Angiosperms > Asterales > Asteraceae > Erigeron

Characteristics

Perennials, 8–40(–60) cm; rhizomatous, fibrous-rooted, caudices or rhizomes relatively thick, simple or branched, sometimes resembling a taproot. Stems erect to basally ascending, moderately to densely strigose to strigoso-hirsute or hirsute, eglandular. Leaves basal (commonly persistent) and cauline; basal blades often 3-nerved, spatulate, obovate to ovate, or elliptic, 20–150 × 5–25 mm, margins entire to shallowly serrate, faces loosely strigose, rarely minutely glandular; cauline blades slightly smaller than basal, relatively even-sized to peduncle bases, (bases subclasping) margins entire, becoming lanceolate (bases non-clasping) distally. Heads 1–4(–6) (from branches on distal 1 / 3 – 1 / 2 of stem, peduncles distinct, 1.5–9 cm). Involucres 5–7 × 9–18 mm. Phyllaries in 3–4 series (greenish), moderately piloso-hirsute, densely minutely glandular (sometimes obscured by hairs). Ray florets 25–80; corollas white, drying white or lilac-tinged, 8–10 mm (ca. 1 mm wide), laminae coiling at tips. Disc corollas 2.9–4 mm. Cypselae 1.6–2.1 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 15–26 bristles. 2n = 18.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.4
Root system fibrous-root rhizome 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 -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-11

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 arizonicus world distribution map, present in Mexico and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:203561-1
WFO ID wfo-0000009408
COL ID 6GNKF
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Erigeron rusbyi Erigeron arizonicus