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作成された日
2024年5月27日
最終更新日
2024年5月27日
Łódź, Botanical Garden
It is native to much of central and eastern North America.
Herbal plant - roots are antiemetic, emetic and purgative, there are confusing reports from two sources that the plant is used as an emetic and also that a cold tea is given to stop vomiting(!); a poultice of the root is anti-inflammatory and is held in the mouth to treat toothaches; the plant is under investigation as a potential stimulant of the immune system.
Usable plant - a blue dye is obtained from the plant, it has been used as a somewhat inferior substitute for true indigo.
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