Aquilegia canadensis [Canadian or Canada columbine, Eastern red columbine, Wild columbine] is an herbaceous perennial native to woodland and rocky slopes in eastern North America, prized for its red and yellow flowers. It readily hybridizes with other species in the genus Aquilegia.
Flowers are 1-2 inches long and have yellow petals with a red spur and red sepals. They appear in late spring, nodding on stems above the leaves. The round end of the spur contains nectar, which is sought by butterflies and hummingbirds.
The caterpillars of Columbine Duskywing [Erynnis lucilius] feed on the leaves.