UW Burke Herbarium species comparison

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Erigeron chrysopsidis

Erigeron flettii

dwarf yellow fleabane
Erigeron flettii

Flett's fleabane, Olympic Mt. fleabane
Habit Perennial from a stout, branched, woody base, 5-15 cm. high, the stem with sparse, spreading hairs.
Leaves

Leaves mostly basal, spatulate to oblanceolate, up to 5 cm. long and 12 mm. wide, mostly glabrous, with a few hairs on the leaf margins.
Flowers

Heads solitary, the disk 10-15 mm. wide;

involucre 6-8 mm. high, with a few soft hairs, and sometimes sticky;

rays 25-50, white, 7-10 mm. long and 1.5-2.5 mm. wide; disk corollas yellow, 3.5-4.5 mm. long;

pappus of 15-20 capillary bristles and numerous short, outer bristles.
Fruits

Achene

Erigeron chrysopsidis

Erigeron flettii
Flowering time May-July June-August
Habitat Shrub-steppe to open slopes of forests at middle elevations. Cliffs and other rocky places in the subalpine and alpine.
Distribution
Occurring east of the Cascades crest in Washington; Washington to California, east to Idaho and Nevada.
[WildflowerSearch map]
[BONAP county map]
Occurring in the Olympic Mountains in Washington, where endemic.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Not of concern Review Group 1 in Washington (WANHP)
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. annuus, 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. 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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