Solidago macrophylla

Solidago macrophylla, the largeleaf goldenrod or large-leaved goldenrod, is North American species of herbaceous perennial plants of the family Asteraceae. It is native to eastern and central Canada (from Ontario to Newfoundland & Labrador) and the north-eastern United States (New York and New England). Some of the populations in Québec and Labrador lie north of the Arctic Circle.

Solidago macrophylla is a perennial herb up to 105 cm (42 inches) tall, with a thick woody rhizome. Leaves can be up to 15 cm (6 inches) long. One plant can produce 110 or more small yellow flower heads, mostly on short side branches.

Galls
This species is host to the following insect induced gall:
 * Asteromyia modesta (Felt, 1907)

external link to gallformers