Crossword clues for the word: OCREA The word OCREA has appeared as an answer to at least 11 crossword clues on different crossword puzzles. Crossword clues for OCREA Showing 1 to 11 of 11 results Clue(s) "Stem covering, in botany." Botanical sheath Leafstalk sheath Papery sheath on a plant stem Plant sheath Plant-stem sheath Sheaf of a leafstalk Sheath of a leafstalk Stem covering Stem sheath Zoological sheath.