Culinary uses

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Erigeron canadensis is an annual plant native throughout most of North America and Central America. It is also widely naturalized in Eurasia and Australia. Common names include horseweed, Canadian horseweed, Canadian fleabane, coltstail, marestail, and butterweed. It was the first weed to have developed glyphosate resistance, reported in 2001 from Delaware.

Medicinal uses

T Traditional Use

Not medical advice

Authoritative scientific evidence is not available for this herb. The information below reflects traditional or ethnobotanical uses documented in public sources. Do not use as a substitute for professional medical advice, diagnosis, or treatment. Consult a qualified healthcare provider before use — especially if you are pregnant, nursing, or taking medication.

No structured medicinal summary is currently available for this herb in our public-source corpus. Traditional uses, if documented, would be referenced here in a future update.