blue flag

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A perennial herb, the dried rhizome of which contains alkaloids, salicylates, starch, and tannins; it is antiemetic and carminative, and has been used for eructation, headache, cramps, rheumatic complaints, to increase the flow of bile, and is said to remove toxins from the blood
Toxicity Fresh blue flag root is poisonous

blue flag

(blū flag)
Herbal derived from Iris versicolor; purported value as an antiinflammatory, laxative, diuretic; human poisoning reported and use contraindicated.
Synonym(s): dagger flower, fleur-de-lis, liver lily, poison flag.

blue flag,

n Latin name:
Iris versicolor; part used: rhizomes with root; uses: laxative, diuretic, emetic, antimicrobial, treat sores, bumps, bites; precautions: pregnancy, lactation, children; can cause headache, soreness, and irritation to ear, eyes, nose, and throat, nausea, and death by poison. Also
dagger flower, dragon flower, flag lily, fleur-de-lis, flower-de-luce, liver lily, poison flag, snake lily, water flag, or
wild iris.
Enlarge picture
Blue flag.

blue flag

irisversicolor.