This small perennial is native to the mountains of New Zealand and Tasmania. Probably brought in as a dainty rockery plant, but is now a real pest in the garden as it spreads by seed and creeping stems. As for the other Sorrels the plant contains oxalic acid so has similar medicinal and culinary uses - it is also high in Vitamin C. Some of the herbal remedies it could be used for are, to stem bleeding, urinary tract infections, as a diuretic and an astringent to contract tissues and ease injury. The leaves and flowers add a sharp tange to salads, but only in small quantities.
Procumbent Yellow Sorrel (O. corniculata) is a similar, slightly larger plant, but has flowers on clusters
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