helianthus salicifolius , commonly called willow-leaved sunflower,

background bloom blooming blossom blue botanical botany bright bucolic called close closeup color commonly environment field flora floral foliage france garden gardening garonne gironde grass green growing growth head helianthus holidays isolated meadow missouri morning native natural nature occurs open outdoors plant prairie salicifolius scenery season spring summer sunchoke sunflower sunroot that travel tuberosus unglaciated vibrant wall western willowleaved