Bluish flowered individual, with white flowered plants. Reminiscent of H. tayloriii.
I think this may be Erigeron flettii (Olympic Mountain aka Flett's Fleabane), about 4-6" tall, growing on a boulder.
This aster with basal leaves and stems up to maybe 8" may be Erigeron flettii (Olympic Mountain Fleabane). There were quite a few clumps near the summit.
Type locality