#oxalidales

Wood Sorrel (Oxalis spp) is a common small lawn and garden weed from the Oxidales order, members of which typically have flowers with 5-6 petals and sepals (sepals are the green modified leaves at the base of a flower that protect and support the petals). See the angiosperm phylogeny to locate Oxalides.

Wood Sorrel has the classic “shamrock” shape leaf, though it is unrelated to clovers, and can have yellow violet, or white flowers depending on the variety.

Wood sorrel greens have a tangy, lemony taste due to the presence of oxalic acid (found in lower concentrations in other vegetables such as beet greens and kale), and are traditionally eaten raw as salad greens.