bignoniaceae: trees or shrubs or woody vines or herbs having fruit resembling gourds or capsules; sometimes placed in the order Scrophulariales
asterid dicot family: family of more or less advanced dicotyledonous herbs and some trees and shrubs
sodium: a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)