\On`a*gra"ceous\, Onagrarieous \On`a*gra*ri"e*ous\,
a. [From NL. Onagra an old scientific name of the evening
primrose (Enothera), fr. Gr. ? a kind of plant; of uncertain
origin.] (Bot.)
Pertaining to, or resembling, a natural order of plants
({Onagrace[ae]} or {Onagrarie[ae]}), which includes the
fuchsia, the willow-herb ({Epilobium}), and the evening
primrose ({[OE]nothera}).