Yarrows East of the Cascade Mountains of Oregon and Washington
The Genus Achillea
Yarrow blooming at about 9400' at the head of the Little Blitzen Gorge, Steens Mountain, Harney County, Oregon.......September 1, 2011.
Common Yarrow, Yarrow, Milfoil, Achillee millefeuille, Herbe-a-dinde: Achillea millefolium (Synonyms: Achillea alpicola, Achillea arenicola, Achillea borealis, Achillea borealis ssp. arenicola, Achillea borealis ssp. californica, Achillea californica, Achillea gigantea, Achillea lanulosa, Achillea lanulosa sp. alpicola, Achillea lanulosa var. eradiata, Achillea lanulosa var. lanulosa, Achillea laxiflora, Achillea megacephala, Achillea millefolium ssp. borealis, Achillea millefolium ssp. lanulosa, Achillea millefolium var. alpicola, Achillea millefolium var. arenicola, Achillea millefolium var. asplenifolia, Achillea millefolium var. borealis, Achillea millefolium var. californica, Achillea millefolium var. gigantea, Achillea millefolium var. lanulosa, Achillea millefolium var. litoralis, Achillea millefolium var. maritima, Achillea millefolium var. megacephala, Achillea millefolium var. millefolium, Achillea millefolium var. nigrescens, Achillea millefolium var. occidentalis, Achillea millefolium var. pacifica, Achillea millefolium var. puberula, Achillea nigrescens, Achillea occidentalis, Achillea pacifica, Achillea puberula, Achillea rosea, Achillea subalpina) -