white flowered sky pilot (polemonium pulcherrimum var. pilosum) blooming in lassen volcanic national park at high altitude, among

alpine altitude america arid beautiful bloom blooming blossom bright ca california closeup county detail dry flora floral flower green high in lassen leaves mountain mountainous national natural nature outdoors park pilosum pilot plant polemonium pulcherrimum rocks rocky season shasta sky states summer terrain tiny united usa volcanic white wild wildflower wildflowers