Source : Webster's Revised Unabridged Dictionary (1913)

Verbenaceous \Ver`be*na"ceous\, a. (Bot.)
   Of or pertaining to a natural order ({Verbenace[ae]}) of
   gamopetalous plants of which Verbena is the type. The order
   includes also the black and white mangroves, and many plants
   noted for medicinal use or for beauty of bloom.