Erigeron oreades Fisch. & C.A.Mey.

Species

Angiosperms > Asterales > Asteraceae > Erigeron

Characteristics

Herbs, biennial or short-lived perennial, 2.5-25 cm tall; rhizome weak. Stems solitary, 1-2.5 mm in diam. at base, erect or ascending, simple, or rarely branched, green or sometimes purple-red, densely hirsute, strigillose. Leaves few, margin and petiole hirsute-ciliate, surfaces glabrous or glabrate to sparsely hirsute; basal withered at anthesis, long petiolate, petiole base subclasping, blade oblanceolate, 1-3(-7) × 0.2-0.4 cm, base attenuate, apex obtuse to rounded, mucronate; cauline 4-7, sessile, blade linear or linear-lanceolate, 1-4 × 0.1-0.3 cm, apex acute, uppermost often overtopping capitula. Capitula usually solitary, or sometimes 2-8 in racemose synflorescences, ca. 0.8 × 1.5-1.8 cm. Involucre hemispheric; phyllaries 3-seriate, green or purple at apex, linear-lanceolate, (5-)8-9 × 0.6-1 mm, abaxially sparsely villous-hirsute, outer 1/2 as long as inner or less, inner conspicuously exceeding disk florets, margin scarious. Ray florets 2-or 3-seriate, pale violet, 6-7 mm, tube ca. 2 mm, hairy above, lamina involute when dry; disk florets yellowish, 4-4.5 mm, hairy, tube ca. 1.5 mm, limb cylindric, lobes lanceolate, ca. 0.6 mm, purple tinged, anthers and style branches not exserted from corolla. Achenes narrowly oblong, compressed, 2-2.5 × ca. 0.6 mm, strigose. Pappus 2-seriate, yellowish, outer bristles ca. 0.5 mm, inner 4.5-5 mm. Fl. Jul-Sep.
Life form
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.03 - 0.25
Root system fibrous-root rhizome
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 -
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Hardiness (USDA) 5-10

Usage

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

Cultivation

Mode -
Germination duration (days) 15 - 20
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
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Optimum temperature (C°) -
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Distribution

Erigeron oreades world distribution map, present in China, Kazakhstan, Kyrgyzstan, Liberia, Mongolia, and Tajikistan

Identifiers

LSID urn:lsid:ipni.org:names:204249-1
WFO ID wfo-0000082876
COL ID 6GQ53
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Erigeron oreades