The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links
Erigeron oreganus

Gorge fleabane, Oregon fleabane

Salish fleabane, star peak fleabane

Habit Perennial from a stout, woody base and root, the lax stem 5-15 cm. long, covered with glands and loose, sticky hairs. Perennial from a taproot and branched crown, forming dense cushions, the simple, erect, scape-like stems 1.5-7 cm. high, pubescent.
Leaves

Basal leaves tufted, spatulate to obovate, coarsely toothed or incised, up to 9 cm. long and 2.5 cm. wide;

cauline leaves well developed, broadly lanceolate to ovate or elliptic, up to 4 cm. long and 1 cm. wide.

Leaves all basal on slender petioles;

leaf blades obovate-spatulate, 3-16 mm. long and 3-6 mm. wide, the bases abruptly expanded, the margins usually with 3 rounded lobes and marginal hairs, the faces with stiff hairs.

Flowers

Heads 1-several in a leafy inflorescence, the disk 9-13 mm. wide;

involucre 5-7 mm. high, the bracts loose, equal, thin and green;

rays 30-60, pink or white to bluish; disk corollas 3.4-4.7 mm. long, yellow;

pappus simple, of 15-20 bristles that are curled and twisted above.

Heads solitary, the involucres 8-11 mm long, the bracts in 2-3 series, usually purplish, especially the tips;

ray flowers 15-32, white to bluish, 6-10 mm. long, spreading;

disk flowers yellow;

pappus of capillary bristles

Fruits

Achenes 2-2.6 mm. long, 2-nerved.

Erigeron oreganus

Erigeron salishii

Flowering time May-September July-September
Habitat Moist shady cliffs and ledges. Cliffs, ridges, ledges and gravelly slopes at mid- to high elevations in the mountains.
Distribution
Occurring in the Columbia River Gorge in Washington; Columbia River Gorge in Washington to adjacent Gorge area in Oregon.
[WildflowerSearch map]
[BONAP county map]
Ocurring east of the Cascades crest in the North and Central Cascade Mountains in Washington; southwestern British Columbia to central Washington.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Threatened in Washington (WANHP) Sensitive in Washington (WANHP)
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. 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. 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. speciosus, E. strigosus, E. subtrinervis
Web links