oxalis, sorrel, wood sorrel -- (any plant or flower of the genus Oxalis)
dock, sorrel, sour grass -- (any of certain coarse weedy plants with long taproots, sometimes used as table greens or in folk medicine)
roselle, rozelle, sorrel, red sorrel, Jamaica sorrel, Hibiscus sabdariffa -- (East Indian sparsely prickly annual herb or perennial subshrub widely cultivated for its fleshy calyxes used in tarts and jelly and for its bast fiber)
sorrel, common sorrel -- (large sour-tasting arrowhead-shaped leaves used in salads and sauces)
sorrel -- (a horse of a brownish orange to light brown color)