Swamp tickseed is a short-lived perennial with charming pink and yellow blooms. It occurs naturally in wet prairies, bogs, seepage slopes, wet flatwoods and roadside ditches. It blooms in spring (typically April and May) and is attractive to bees, although butterflies and other pollinators are known to visit them. Birds eat its seeds. Swamp tickseed is often confused with the non-native Cosmos bipinnatus.