Rumex acetosa
Culinary sour green — French sorrel soup is a classic. High in oxalic acid and vitamin C. For fever, scurvy (historical), and as digestive tonic. Related to Sheep Sorrel. Use in moderation due to oxalates.
Kidney stones (HIGH oxalates). Kidney disease. Pregnancy (oxalates/oxytocic).
Calcium supplements (oxalate binding), blood thinners.
Safe in culinary amounts. GI upset. Kidney stones with excess.
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