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Eurybia radula
Rough-leaved aster is a perennial herb with a stem that can grow up to 3 feet (1 m) tall. The leaves are alternate, lance-shaped, strongly veined, toothed on the margin, rough to the touch, stalkless, and up to 4½ inches (11.5 cm) long. The flowers, appearing from August to October, are arranged in a small cluster of daisy-like flower heads at the top of the stem. Each flower head contains many yellow disk florets that are surrounded by 15-40 purple to white ray florets.
It grows in wet woods, swamps, seeps, bogs, and along streams.