onagra

From The Collaborative International Dictionary of English v.0.48:

Onagra \O*nag"ra\, prop. n. (Bot.)
   Same as Oenothera, a genus of plants consisting of the
   evening primrose.
   [PJC]
.

From The Collaborative International Dictionary of English v.0.48:

onagra \on"a*gra\, n.
   The female of the onager.
   [PJC] Onagraceous