Wrinkleleaf goldenrod

''Solidago rugosa'', the wrinkleleaf goldenrod or rough-stemmed goldenrod, is a North American species of flowering plants in the sunflower family. It is widespread across eastern and central Canada and the eastern and central United States .

''Solidago rugosa'' is a rough-leaved perennial herb up to 200 cm , over 6 feet) tall, spreading by means of underground rhizomes. One plant can produce as many as 50 stems, each with 50–1500 yellow flower heads.