Big-Head Clover (Trifolium macrocephalum)
The palmately divided leaves, looking much like those of the lupine, are a giveaway that it’s in the pea family. It’s underground rhizome roots can result in a large area covered with the small blooms. The most showy of the clovers, it differs from other trifolium by locating only in thin dry gravelly soil.
On a May hike we found it flourishing, along with some yellow Desert Parsley, at the top of Washington’s Grassy Knoll lookout. The next may we found it along the Dalles Mountain Road and in the Hood River Mountain Meadow.