columned

from WordNet (r) 3.0 (2006)

columned
    adj 1: having or resembling columns; having columns of a
           specified kind (often used as a combining form); "a
           columned portico"; "trees with columned trunks"; "white-
           columned houses" [ant: {noncolumned}, {uncolumned}]

from The Collaborative International Dictionary of English v.0.48

Columned \Col"umned\, a.
   Having columns.
   [1913 Webster]

         Troas and Ilion's columned citadel.      --Tennyson.
   [1913 Webster]