UW Burke Herbarium species comparison

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Erigeron basalticus

Erigeron aureus

basalt fleabane

golden fleabane
Habit Several stems from a perennial taproot, sprawling, branched and leafy, especially near the tip. Perennial from a short, branched woody base, 2-15 cm. tall, covered with fine, short hairs.
Leaves

Leaves with stiff, blunt hairs and fine glands, wedge-shaped to obovate, up to 4 cm. long and 1.5 cm. wide, deeply tri-lobed, the lobes broad.

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

cauline leaves few and reduced.
Flowers

Heads terminating the branches, the disk 8-12 mm. wide;

involucre 5-6 mm. high, densely glandular;

rays 25-30, light pink or pinkish-purple, 5-7 mm. long and 1.5 mm. wide; disk corollas 3-4 mm. long, pale yellow;

pappus of 10-15 capillary 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

Achene

Erigeron basalticus

Erigeron aureus
Flowering time May-July June-August.
Habitat Cliff crevices in rocky canyons. Exposed rocky areas, cliffs, and ridges in subalpine to alpine areas.
Distribution
Occurring east of the Cascades crest where endemic to Kittitas and Yakima counties in Washington.
[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 Threatened in Washington (WANHP) Not of concern
Sibling taxa
E. acris, E. aliceae, E. annuus, E. aureus, 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
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
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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