Acoraceae familyNE · Not Evaluated

Sweet flag

Acorus calamus L.

Acorus calamus (also called sweet flag, sway or muskrat root, among many other common names) is a species of flowering plant.

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Overview

Acorus calamus (also called sweet flag, sway or muskrat root, among many other common names) is a species of flowering plant. It is a tall wetland monocot of the family Acoraceae, in the genus Acorus. Although used in traditional medicine over centuries to treat digestive disorders and pain, it has no clinical evidence of safety or efficacy and may be toxic if ingested, and so has been commercially banned for use in food in the United States.

Updated by lebachungtdh@gmail.com · 10/15/2026

菖蒲可以提取芳香油；端午节有把菖蒲叶和艾草捆一起插於簷下的习俗；根莖可製香味料。亦稱为尧韭。菖蒲油可用於醫藥、美容、香水、烹飪和家庭用途。

Updated by lebachungtdh@gmail.com · 10/15/2026

Uses

Although used in traditional medicine over centuries to treat digestive disorders and pain, it has no clinical evidence of safety or efficacy and may be toxic if ingested, and so has been commercially banned for use in food in the United States.

Habitat & conservation

菖蒲分布很广，整个温带基本都能找到它，中国各地也都有分布。

Conservation

Sweet flag has not been assessed by the IUCN Red List (NE). As a medicinal plant, it benefits from sustainable collection and propagation to protect wild genetic resources.

References

1Wikipedia – Acorus calamus — Wikipedia,
2Kew POWO – Acorus calamus — Plants of the World Online (Kew),
3Wikidata – Q158008 — Wikidata,

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