Definitions for: Rugose

[adj] (botany) of leaves; ridged or wrinkled

Webster (1913) Definition: Ru*gose", a. [L. rugosus, r. ruga a wrinkle.]
Wrinkled; full of wrinkles; specifically (Bot.), having the
veinlets sunken and the spaces between them elevated, as the
leaves of the sage and horehound.

Synonyms: rough, unsmooth