The Collaborative International Dictionary of English v.0.48:

Spurry \Spur"ry\ (sp[u^]r"r[y^]), n. [D. or OF. spurrie; cf. G.
   spergel, NL. spergula.] (Bot.)
   An annual herb (Spergula arvensis) with whorled filiform
   leaves, sometimes grown in Europe for fodder. [Written also
   spurrey.]
   [1913 Webster]

   Sand spurry (Bot.), any low herb of the genus Lepigonum,
      mostly found in sandy places.
      [1913 Webster]

WordNet (r) 3.0 (2006):

sand spurry
    n 1: prostrate weedy herb with tiny pink flowers; widespread
         throughout Europe and Asia on sand dunes and heath and
         coastal cliffs; naturalized in eastern North America [syn:
         sand spurry, sea spurry, Spergularia rubra]