common wood sorrel
Quick Summary
Wood sorrel refers to several flowering plants in the genus Oxalis (family Oxalidaceae). The common wood sorrel (O. acetosella) is a small, stemless plant with clover-like leaves and white, purple-veined flowers. Its fruit is a capsule, and its seeds are ejected by an elastic curling of their fleshy coat. The leaflets fold and droop at night. In North America, mountain wood sorrel (O. montana) is common. The name "wood sorrel" is sometimes mistakenly applied to plants like sheep sorrel (Rumex acetosella). The genus name Oxalis comes from the Greek word for "acid," referring to the plants' sour taste due to oxalic acid.1234
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