white snakeroot, ageratina altissima

ageratina altissima eupatorium rugosum flower nature plant garden white leaf green outdoors summer bloom closeup field flora meadow natural botany blossom grass detail wildflower spring bright asteraceae wild perennial pretty background road flocked america poisonous toxic tall beauty small timberland floral ecology organic season lush freshness delicate botanical greenery ecosystem environment growth snakeroot blossoms