Onagraceous /(ŏn`ȧ*grā"shŭs)/

On·a·gra·ceous

Onagraceous

a.
  1. Pertaining to, or resembling, a natural order of plants (Onagraceae or Onagrarieae), which includes the fuchsia, the willow-herb (Epilobium), and the evening primrose (Œnothera). (Bot.)