You Can Learn Series. N.p., n.d. Web. 7 Nov. 2014.
Yarrow aka Achillea millefolium is from the Aster family that can grow anywhere from 10 to 100 cm tall. The leaves have a fern like characteristic that are pinnately dissected. Flowers range from white to pink or reddish in color and in the form of a compound umbel. The Yarrow produces a hairless, flattened achenes that lack pappus. This plant can be found on dry or moist sites, meadows, rocky slopes, gravel bars, and at low to high elevations. The specific Yarrow found at Valdez Glacier was along a rocky/gravel area at a low elevation.
Pojar, Jim, A. MacKinnon, and Paul B. Alaback. "Aster." Plants of the Pacific Northwest Coast: Washington, Oregon, British Columbia & Alaska. Redmond, WA: Lone Pine Pub., 1994. 279. Print.