UW Burke Herbarium species comparison

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Erigeron pumilus

Erigeron aureus

shaggy fleabane

golden fleabane
Habit Perennial from a woody base and taproot, the stem 5-50 cm. tall, the herbage copiously spreading-hairy. Perennial from a short, branched woody base, 2-15 cm. tall, covered with fine, short hairs.
Leaves

Leaves basal and cauline, oblanceolate to linear-oblanceolate, up to 8 cm. long and 8 mm. wide.

Basal leaves petiolate, with elliptical to obovate, broadly rounded blade up to 13 mm. wide;

cauline leaves few and reduced.
Flowers

Heads several, the disk 7-15 mm. wide;

involucre 4-7 mm. high, the bracts narrow, spreading-hairy;

rays 50-100, 0.7-1.5 mm. wide, usually white, occasionally pale blue or pink; disk corollas 3.5-5 mm. long, slender, yellow but paler below;

pappus of capillary bristles, with an outer row of shorter bristles.

Heads solitary, the disks 7-16 mm. wide;

involucre 5-8 mm. high, its bracts loose, equal, herbaceous, often purplish, white-woolly;

rays 25-70, yellow, 6-9 mm. long and 1.4-2.5 mm. wide; disk corollas 3.6-4.9 mm. long, yellow;

pappus of 10-20 capillary bristles.
Fruits

Achenes slightly hairy.

Achene

Erigeron pumilus

Erigeron aureus
Flowering time May-July June-August.
Habitat Open places in the foothills, valleys and plains, often among sagebrush. Exposed rocky areas, cliffs, and ridges in subalpine to alpine areas.
Distribution
Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Great Plains.
[WildflowerSearch map]
[BONAP county map]
Occurring on both sides of the Cascades crest in Washington; British Columbia to Washington, east to Alberta.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
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. 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. salishii, E. speciosus, E. strigosus, E. subtrinervis
E. acris, E. aliceae, E. annuus, 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. pumilus var. intermedius, E. pumilus var. pumilus
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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