ru·gose /ˈruˌgos/
  (a.)多縐的;有縐紋的;成波狀的
  ru·gose /ˈruˌgos/ 形容詞
  (拉rugosus)多皺的,具皺紋的
  Ru·gose a.  Wrinkled; full of wrinkles; specifically Bot., having the veinlets sunken and the spaces between them elevated, as the leaves of the sage and horehound.
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  rugose
       adj : of leaves; ridged or wrinkled