Vernonia fasciculata, the smooth ironweed or common ironweed,[3] or prairie ironweed[4] is a species of perennial plant in the family Asteraceae.

[5] It is native to Manitoba in Canada and the north-central U.S.A. Vernonia fasciculata inhabits areas with moist soils and prairies.

[6] It flowers in July to September.

Vernonia fasciculata is a herbaceous perennial that grows 2–4 ft (0.61–1.22 m) tall with unbranched stems, which end in an inflorescences with magenta flowers arranged in a dense corymb.

[7] V. fasciculata is winter hardy in USDA zones 4-9, it is planted in full sun and used in rain gardens and as a naturalized plant because of its showy flower display, it is deer tolerant and adaptable to wet soils.