UW Burke Herbarium species comparison

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Erigeron chrysopsidis

Erigeron disparipilus

dwarf yellow fleabane
Erigeron disparipilus

Snake River fleabane, white cushion fleabane
Habit Perennial from a tap-root, 3-12 cm. high, the stem covered with very unequal, spreading hairs.
Leaves

Leaves nearly all in a basal cluster, finely stiff-hairy, linear or linear-oblanceolate, up to 4 cm. long and 2 mm. wide.
Flowers

Heads solitary;

involucres 5-7 mm. high, with spreading short hairs and often glandular as well;

rays 30-60, white, pistillate, becoming pinkish, 5-10 mm. long and 1.5-2.3 mm. wide;

disk flowers yellow;

pappus of 15-25 capillary bristles.

Erigeron chrysopsidis

Erigeron disparipilus
Flowering time May-July May-July
Habitat Shrub-steppe to open slopes of forests at middle elevations. Dry, rocky hillsides at low 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 east of the Cascades crest in the Snake River area in southeastern Washington; southeastern Washington to southeastern Oregon, east to southwestern Idaho.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Not of concern Sensitive 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. 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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