Rumex scutatus is a plant in the buckwheat family, used as a culinary herb. Its common names include French sorrel, buckler sorrel, shield-leaf sorrel, and sometimes the culinary name "green-sauce".
As a culinary herb, it is used mainly in salads. The flavour of French sorrel is slightly bitter or tangy, spiced with a hint of lemon; the sharp flavour is due to oxalic acid. French sorrel is hardy in most regions, tolerating frost, full sun and short dry spells. It grows quickly to a clump up to 1 metre (3.3 ft) in diameter, with long leaves up to 10 centimetres (4 in) in width. It is sometimes preferred for culinary uses to Rumex acetosa, garden sorrel.
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- The Plant List: A Working List of All Plant Species, retrieved 10 May 2016
- "Rumex scutatus". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 26 October 2015.
- Robert Hooper, Lexicon medicum, 1829 s.v. Rumex scutatus
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- Welcome to Jekka's Herb Farm | Specialising in Organic, Culinary, Aromatic, Decorative and Medicinal Herbs
- Plants for a Future, retrieved 13 May 2016
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