The Collaborative International Dictionary
Valerianaceous
Valerianaceous \Va*le`ri*an*a"ceous\, a. (Bot.) Of, pertaining to, or resembling, plants of a natural order ( Valerianacc[ae]) of which the valerian is the type. The order includes also the corn salads and the oriental spikenard.
Wiktionary
valerianaceous
a. Of or pertaining to the flowering plant genus ''Valeriana''.