genus of tropical American herbs grown for their flowers
type genus of the Megapodiidae
birch leaf miner
a genus including the common European kits
any plant of the genus Ageratum having opposite leaves and small heads of blue or white 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
(biology) taxonomic group containing one or more species
