onagraceous
On`a*gra"ceous, On`a*gra*ri"e*ous, a. Etym: [From NL. Onagra an old scientific name of the evening primrose (Enothera), fr. Gr. (Bot.) Defn: Pertaining to, or resembling, a natural order of plants (Onagraceæ or Onagrarieæ), which includes the fuchsia, the willow- herb (Epilobium), and the evening primrose ().