Ipomopsis congesta (Hook.) V.E.Grant

A variable species found in much of the western United States, readily recognized by the dense spherical heads of many small, white flowers. Several subspecies are named, but I am not certain which I have photographed.

Plant habit on the west side of Mount Thielsen near timberline, Douglas County, Oregon, 26 Jul 2008.

Leaves on the west side of Mount Thielsen, 26 Jul 2008.