Yellow Flag

(redirected from yellow water flag)
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A perennial herb, the dried rhizome of which contains alkaloids, salicylates, tannin, and volatile oil; yellow flag was once used as a blood purifier, for flatulence, headaches, heartburn, colic, skin complaints
Toxicity Fresh yellow flag root is poisonous, and may cause gastrointestinal pain, nausea, vomiting
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