roughleaf sunflower, helianthus strumosus

america american americana appalachain appalachia appalachian aspera aster asteraceae beauty blazing bloom blooming blue botanical botany brp close closeup cluster clustered clusters delicate detail ecology field fields flora flower flowering flowers garden green group grow growth helianthus horizontal leaf leaves meadow meadows mountain mountains mountian mountians natural nature outdoors parkway perennials plant plants ridge rough roughleaf shady showy star states strumosus summer sunflower sunflowers united usa vertical virginia wild wildflower wildflowers woodlands woods yellow