Hood’s Phlox (Phlox hoodi)
Phlox is Greek for “flame” (apparently named after a bright red variety). Wikipedia reports 68 varieties, mostly occurring in North America. This is one of four varieties that are found in the gorge, and nine that are found in the northwest. Many, but not all, phlox grow in dense mats at higher elevations, like the one above, near the top of Washington’s Dalles Mountain Road.