ଅର୍ଥ : Rhizomatous plant of central and southeastern United States and West Indies having large showy heads of clear blue flowers. Sometimes placed in genus Eupatorium.
ସମକକ୍ଷ : conoclinium coelestinum, eupatorium coelestinum, mist-flower, mistflower
ଅର୍ଥ : Any plant of the genus Ageratum having opposite leaves and small heads of blue or white flowers.