|
|
ageratum | any plant of the genus Ageratum having opposite leaves and small heads of blue or white flowers | |
|
|
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❳ |