Conoclinium coelestinum (mistflower, hardy ageratum, wild ageratum)

description: perennial

place of origin: eastern United States

urban habitat: commonly found in moist soils along streams, in flood plains, drainage ditches, ravines, roadsides, railroads, in disturbed sites; thrives in full sun.

ecological function: disturbance-adapted colonizer; food and habitat for wildlife.

history: Although native to the US, Conoclinium coelestinum is often considered weedy due to its tendency to spread quickly.