The Columbia Encyclopedia, Sixth Edition. 2001-07.
bougainvillea
or bougainvillaea (both: b´´gnvl´) (KEY) [for L. A. de Bougainville], any plant of the genus Bougainvillea of the family Nyctaginaceae (four-oclock family); chiefly tropical American woody vines with showy petallike bracts, usually in shades of brilliant red or purple. Bougainvilleas are classified in the division Magnoliophyta, class Magnoliopsida, order Caryophyllales, family Nyctaginaceae.