- leaves are edible raw.
- leaves have a sour taste.
- flowers are eible raw.
- leaves and flowers are safer and tastier when cooked.
- varieties in the Pacific Northwest include Creeping woodsorrel (Oxalis corniculata), Stoloniferous woodsorrel (Oxalis dillenii) and Upright woodsorrel (Oxalis stricta).
- grows in disturbed sites.
- raw leaves and raw flowers contain oxalic acid, which can cause nutritional deficiency in high doses.