[Members of the Sunflower Family with Flower Heads Like Daisies Found West of the Cascade Mountains]

Yarrow, Common Yarrow, Milfoil

Achillea millefolium

Synonyms: Achillea borealis, Achillea lanulosa, Achillea lanulosa var. eradiata, Achillea lanulosa var. lanulosa, Achillea millefolium ssp. lanulosa, Achillea millefolium var. alpicola, Achillea millefolium var. borealis, Achillea millefolium var. californica, Achillea millefolium var. lanulosa, Achillea millefolium var. litoralis, Achillea millefolium var. millefolium, Achillea millefolium var. occidentalis, Achillea millefolium var. pacifica

Yarrow, Common Yarrow, Milfoil: Achillea millefolium (Synonyms: Achillea borealis, Achillea lanulosa, Achillea lanulosa var. eradiata, Achillea lanulosa var. lanulosa, Achillea millefolium ssp. lanulosa, Achillea millefolium var. alpicola, Achillea millefolium var. borealis, Achillea millefolium var. californica, Achillea millefolium var. lanulosa, Achillea millefolium var. litoralis, Achillea millefolium var. millefolium, Achillea millefolium var. occidentalis, Achillea millefolium var. pacifica)

A close-up of the inflorescence of yarrow as seen along the Hurricane Hill Trail in Olympic National Park.........July 25, 2008.

Yarrow, Common Yarrow, Milfoil: Achillea millefolium (Synonyms: Achillea borealis, Achillea lanulosa, Achillea lanulosa var. eradiata, Achillea lanulosa var. lanulosa, Achillea millefolium ssp. lanulosa, Achillea millefolium var. alpicola, Achillea millefolium var. borealis, Achillea millefolium var. californica, Achillea millefolium var. lanulosa, Achillea millefolium var. litoralis, Achillea millefolium var. millefolium, Achillea millefolium var. occidentalis, Achillea millefolium var. pacifica)

This view shows yarrow as seen along the Hurricane Hill Trail in Olympic National Park........July 25, 2008.

Yarrow, Common Yarrow, Milfoil: Achillea millefolium (Synonyms: Achillea borealis, Achillea lanulosa) - Inflorescence of Yarrow, Common Yarrow, Milfoil: Achillea millefolium (Synonyms: Achillea borealis, Achillea lanulosa, Achillea lanulosa var. eradiata, Achillea lanulosa var. lanulosa, Achillea millefolium ssp. lanulosa, Achillea millefolium var. alpicola, Achillea millefolium var. borealis, Achillea millefolium var. californica, Achillea millefolium var. lanulosa, Achillea millefolium var. litoralis, Achillea millefolium var. millefolium, Achillea millefolium var. occidentalis, Achillea millefolium var. pacifica)

Two close-up views of the inflorescence of yarrow as seen along the beach at Barview Jetty County Park on the Oregon coast.........August 26, 2009.

Close-up of an inflorescence of Yarrow, Common Yarrow, Milfoil: Achillea millefolium (Synonyms: Achillea borealis, Achillea lanulosa, Achillea lanulosa var. eradiata, Achillea lanulosa var. lanulosa, Achillea millefolium ssp. lanulosa, Achillea millefolium var. alpicola, Achillea millefolium var. borealis, Achillea millefolium var. californica, Achillea millefolium var. lanulosa, Achillea millefolium var. litoralis, Achillea millefolium var. millefolium, Achillea millefolium var. occidentalis, Achillea millefolium var. pacifica) - Yarrow, Common Yarrow, Milfoil: Achillea millefolium (Synonyms: Achillea borealis, Achillea lanulosa, Achillea lanulosa var. eradiata, Achillea lanulosa var. lanulosa, Achillea millefolium ssp. lanulosa, Achillea millefolium var. alpicola, Achillea millefolium var. borealis, Achillea millefolium var. californica, Achillea millefolium var. lanulosa, Achillea millefolium var. litoralis, Achillea millefolium var. millefolium, Achillea millefolium var. occidentalis, Achillea millefolium var. pacifica)

A close-up of the inflorescence of yarrow as seen (left) along the road along the bay side of Bayocean Spit, Oregon........August 25, 2012. The photo at right shows the inflorescence of yarrow as seen at the Yaquina Head Outstanding Natural Area.........September 29, 2017.
Paul Slichter