briary

from WordNet (r) 3.0 (2006)

briary
    adj 1: having or covered with protective barbs or quills or
           spines or thorns or setae etc.; "a horse with a short
           bristly mane"; "bristly shrubs"; "burred fruits";
           "setaceous whiskers" [syn: {barbed}, {barbellate},
           {briary}, {briery}, {bristled}, {bristly}, {burred},
           {burry}, {prickly}, {setose}, {setaceous}, {spiny},
           {thorny}]

from The Collaborative International Dictionary of English v.0.48

briary \briary\ adj.
   1. having or covered with protective barbs or quills or
      spines or thorns etc.; -- of plants or animals.

   Syn: barbed, barbellate, briery, bristly, burred, burry,
        prickly, spiny, thorny.
        [WordNet 1.5]