| Noun | 1. | genus Acacia - large genus of shrubs and trees and some woody vines of Central and South America, Africa, Australia and Polynesia: wattle; mimosa rosid dicot genus - a genus of dicotyledonous plants Mimosoideae, subfamily Mimosoideae - alternative name used in some classification systems for the family Mimosaceae acacia - any of various spiny trees or shrubs of the genus Acacia shittah, shittah tree - source of a wood mentioned frequently in the Bible; probably a species of genus Acacia Acacia auriculiformis, black wattle - Australian tree that yields tanning materials Acacia cambegei, gidgee, stinking wattle - scrubby Australian acacia having extremely foul-smelling blossoms Acacia catechu, catechu, Jerusalem thorn - East Indian spiny tree having twice-pinnate leaves and yellow flowers followed by flat pods; source of black catechu Acacia dealbata, mimosa, silver wattle - evergreen Australasian tree having white or silvery bark and young leaves and yellow flowers huisache, mimosa bush, scented wattle, sweet acacia, sweet wattle, Acacia farnesiana, cassie, flame tree - tropical American thorny shrub or small tree; fragrant yellow flowers used in making perfumery Acacia melanoxylon, lightwood - tall Australian acacia yielding highly valued black timber Acacia pycnantha, golden wattle - shrubby Australian tree having clusters of fragrant golden yellow flowers; widely cultivated as an ornamental Acacia xanthophloea, fever tree - African tree supposed to mark healthful regions |