[Members of the Sunflower Family in the Cascade Mts with Flowerheads Having Both Discoid and Ray Flowers]
Yarrow

Achillea millefolium

Yarrow: Achillea millefolium (var. alpicola?)

This photo shows a close-up of the flat-topped inflorescence of yarrow as seen in "sandy" volcanic soils along the Timberline Trail above the Cloud Cap Chalet in the Mt. Hood Wilderness.......................August 2, 2007. Individual flower heads can be seen here, each with up to a dozen central, disk flowers surrounded by 3-6 ray flowers.

Leaf of Yarrow: Achillea millefolium (var. alpicola?)

This photo shows a close-up of a pinately compound basal leaf of yarrow as seen in "sandy" volcanic soils along the Timberline Trail above the Cloud Cap Chalet in the Mt. Hood Wilderness.......................August 2, 2007. The leaf consists of numerous (not a thousand however) segments that are further divided.

Paul Slichter