The Collaborative International Dictionary of English v.0.48:

Scrophulariaceous \Scroph`u*la`ri*a"ceous\, a. (Bot.)
   Of or pertaining to a very large natural order of
   gamopetalous plants (Scrophulariaceae, or
   Scrophularineae), usually having irregular didynamous
   flowers and a two-celled pod. The order includes the mullein,
   foxglove, snapdragon, figwort, painted cup, yellow rattle,
   and some exotic trees, as the Paulownia.
   [1913 Webster]