wood sorrel

One entry found for wood sorrel.

Main Entry: wood sorrel
Function: noun
: any of a genus (Oxalis of the family Oxalidaceae, the wood-sorrel family) of herbs with acid sap, compound leaves, and regular flowers having five usually white, purple, or yellow petals; especially : either of two stemless herbs (O. montana of North America and O. acetosella of Eurasia) with trifoliolate leaves