Erigeron oreganus |
Erigeron eatonii |
|
---|---|---|
Gorge fleabane, Oregon fleabane |
Eaton's 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 tap-root, 5-30 cm. tall, the stems decumbent and purplish at the base, with appressed hairs. |
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. |
Basal leaves tufted, narrow, acute, gradually tapering to the petiole; cauline leaves several, conspicuously reduced. |
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 or up to 7 in an open inflorescence; involucres 5-7 mm. high; rays 20-50, pistillate, white, 5-10 mm. long and 1-3 mm. wide; disk corollas 3.5-5 mm. long, yellow; inner pappus bristles 15-20, outer obscure. |
Erigeron oreganus |
Erigeron eatonii |
|
Flowering time | May-September | May-July |
Habitat | Moist shady cliffs and ledges. | Grasslands, sagebrush, dry slopes, and forest openings at low to middle elevations. |
Distribution | Occurring in the Columbia River Gorge in Washington; Columbia River Gorge in Washington to adjacent Gorge area in Oregon.
|
Occurring east of the Cascades crest in central and southeastern Washington; central Washington to California, east to the Rocky Mountains.
|
Origin | Native | Native |
Conservation status | Threatened in Washington (WANHP) | Not of concern |
Sibling taxa | ||
Subordinate taxa | ||
Web links |