UW Burke Herbarium species comparison

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Erigeron chrysopsidis

Erigeron annuus

dwarf yellow fleabane

annual fleabane, eastern daisy fleabane, sweet scabrous fleabane
Habit Annual, 6-15 dm. tall, the stem with long, spreading hairs below the inflorescence.
Leaves

Leaves ample, generally toothed, the cauline leaves broadly lanceolate to ovate.
Flowers

Inflorescence large and usually leafy;

involucre 3-5 mm. high, finely glandular and sparsely long-hairy;

rays 80-125, white to lavender, 0.5-1 mm. wide and up to 10 mm. long; disk corollas 2-2.8 mm. long;

pappus of 10-15 very fragile bristles and some short, bristly scales, the bristles wanting in the ray flowers.

Erigeron chrysopsidis

Erigeron annuus
Flowering time May-July June-September
Habitat Shrub-steppe to open slopes of forests at middle elevations. Moist, disturbed areas from the lowlands to middle elevations.
Distribution
Occurring east of the Cascades crest in Washington; Washington to California, east to Idaho and Nevada.
[WildflowerSearch map]
[BONAP county map]
Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho and Utah, not recorded for Montana, also from Great Plains east to the Atlantic.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native? Introduced in OR, status as a native in BC uncertain
Conservation status Not of concern Not of concern
Sibling taxa
E. acris, E. aliceae, E. annuus, E. aureus, E. basalticus, E. bloomeri, E. caespitosus, E. compositus, E. corymbosus, E. davisii, E. disparipilus, E. divergens, E. eatonii, E. elatus, E. filifolius, E. flettii, E. glacialis, E. howellii, E. inornatus, E. karvinskianus, E. leibergii, E. linearis, E. lonchophyllus, E. nivalis, E. oreganus, E. peregrinus, E. philadelphicus, E. piperianus, E. poliospermus, E. pumilus, E. salishii, E. speciosus, E. strigosus, E. subtrinervis
E. acris, E. aliceae, E. aureus, E. basalticus, E. bloomeri, E. caespitosus, E. chrysopsidis, E. compositus, E. corymbosus, E. davisii, E. disparipilus, E. divergens, E. eatonii, E. elatus, E. filifolius, E. flettii, E. glacialis, E. howellii, E. inornatus, E. karvinskianus, E. leibergii, E. linearis, E. lonchophyllus, E. nivalis, E. oreganus, E. peregrinus, E. philadelphicus, E. piperianus, E. poliospermus, E. pumilus, E. salishii, E. speciosus, E. strigosus, E. subtrinervis
Subordinate taxa
E. chrysopsidis var. chrysopsidis
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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