ag·er·a·tum /ˌæʤəˈretəm/
霍香
A·ger·a·tum prop. n. Bot. A genus of plants, one species of which (Ageratum Mexicanum) has lavender-blue flowers in dense clusters.
◄ ►
ageratum
n 1: rhizomatous plant of central and southeastern United States
and West Indies having large showy heads of clear blue
flowers; sometimes placed in genus Eupatorium [syn: mistflower,
mist-flower, Conoclinium coelestinum, Eupatorium
coelestinum]
2: any plant of the genus Ageratum having opposite leaves and
small heads of blue or white flowers