Many flowering heads form a compact, flat-topped cluster. The plants may reach 4 feet in height, and the leaves are toothed and triangular.
Location: Longmire, Mount Rainier National Park
Date: July 2, 2014
A very common yellow-flowered aster, this senecio grows in moist habitat, most often in open sites, although occasionally at forest edges and alongside trails.
Location: Reflection Lakes, Mount Rainier National Park
Date: July 31, 2013