Erigeron aureus (Alpine yellow fleabane) is a species of flowering plant in the daisy family, native to the Cascades and Rocky Mountains of northwestern North America (Alberta, British Columbia, Washington). Erigeron aureus is a very small, short-lived herbaceous perennial growing to 10 cm (4 in), rarely 20 cm (8 in) tall. It has tufts of hairy grey-green leaves with large solitary yellow daisy-like flower heads to 2.5 cm (0.98 in) wide, appearing in summer. The specific epithet aureus means "golden yellow".