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Which Alisma species have been used in Native American and Chinese traditional medicine?

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Flowering rush — Alismatales Showy and delicate flowers of the flowering rush (*Butomus umbellatus*).

Within the genus Alisma, the species Alisma subcordatum and Alisma orientale have been utilized in Native American and Chinese medicine, respectively.1

Alisma orientale is sometimes classified as a subspecies of the European water plantain (A. plantago-aquatica). These plants, which belong to the family Alismataceae, have historically been used for both medicinal purposes and as a food source.1