It is a buckwheat, Eriogonum ovalifolium. This is a widespread species throughout the mountains of western North America. There are several local varieties within the species, but I would strongly suspect variety nivale.
mrh & tarol, thank you for the identification! awagher, if your are satisfied with the information received, please detach your picture from the Unidentified flora and fauna album within the next week so that the album remain 'fresh'. Thanks.