Oxalis is a genus of flowering plants in the wood-SORREL family Oxalidaceae. Commonly known as wood-sorrels, oxalis species can be found in many parts of the world. The crossword solutions for the term Oxalis are OCA (3 letters), OKA (3 letters), SORREL (6 letters) and WOODSORREL (10 letters). OCA and OKA are two common names for Oxalis species, while SORREL and WOODSORREL are both terms used to describe the edible leaves of the plant.