Botanical atlas
Broadleaf Bur-reed
Sparganium eurycarpum
This plant is kept in the atlas for identification and safety, not for use. Read the safety notes below before handling it, and keep it away from children, cats, and food.
Broadleaf bur-reed is better known as a wetland provider than as a medicinal herb. Its starchy rhizomes and young tubers were gathered by some Native American communities from marsh mud in autumn, in the same way people dug wapato and other wetland roots, then roasted or boiled them as a foraged vegetable. The seed heads and shoots have long fed migrating waterfowl, and the plant's real legacy is as a quiet cornerstone of marsh life, feeding both people and wildlife where cattails and bulrush also grow. There is little reliable record of it being used as a household remedy the way other herbs were.
Safety.
Broadleaf bur-reed itself isn't documented as toxic, but it grows in the same marshy ground as water hemlock, one of the most poisonous plants in North America, so never gather a wetland root without expert identification.
Our sister app HerbLens identifies broadleaf bur-reed from a photo and keeps its full botanical portrait: growing guide, harvest notes, and look-alike warnings.
View on HerbLensHerbSense shares traditional herbal knowledge for education, not diagnosis or treatment. Herbs can interact with medicines and conditions. Speak with your doctor before acting on anything here, and seek care promptly for anything severe, sudden, or worsening.