wood sorrel

any of a genus (Oxalis, family Oxalidaceae) of creeping dicotyledonous plants (order Geraniales) with white, pink, red, or yellow, five-parted flowers and cloverlike compound leaves that contain oxalic acid: found in cool, shaded, damp woods

Origin: transl. of MFr sorrel de boys

See wood sorrel in American Heritage Dictionary 4

noun
See oxalis.

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