|
|
ageratum, mistflower, mist-flower, Conoclinium coelestinum, Eupatorium coelestinum | rhizomatous plant of central and southeastern United States and West Indies having large showy heads of clear blue flowers; rhizomatous plant of central and southeastern United States and West Indies having large showy heads of clear blue flowers; sometimes placed in genus Eupatorium ❲Conoclinium coelestinum, Eupatorium coelestinum❳ |