rimose

from WordNet (r) 3.0 (2006)

rimose
    adj 1: having a surface covered with a network of cracks and
           small crevices; "a tree with rimose bark"

from The Collaborative International Dictionary of English v.0.48

Rimose \Ri*mose"\, a. [L. rimosus, fr. rima a chink: cf. F.
   rimeux.]
   1. Full of rimes, fissures, or chinks.
      [1913 Webster]

   2. (Nat. Hist.) Having long and nearly parallel clefts or
      chinks, like those in the bark of trees.
      [1913 Webster]