Those sour 3 and 4 leaf clover-like plants

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Wood Sorrell

Oxalis, Sour grass

Oxalis

Parts: Tender leaves, stems

For: Frequently found in poor or acidic soils of yards or fields this sour tasting herb with a clover-like appearance is commonly tasted by children for it’s lemony sour flavor. It can be used to make an iced tea drink, in salads or as a cooked green. See also sheep sorrell.