garlic mustard (Alliaria petiolata) observed in Charlton, NY, USA
iNaturalist: krnickles
Invasive Species
Garlic mustard growing near your garden or local woods releases chemicals into the soil that kill the underground fungi native wildflowers and trees depend on to survive — so one patch left unchecked can quietly wipe out trilliums, trout lilies, and woodland violets over time.
Someone spotted garlic mustard — a plant originally from Europe — growing in Charlton, New York. This plant is a well-known troublemaker in North American forests because it crowds out native spring wildflowers and disrupts the underground fungal networks that native plants rely on. Pulling it out by the roots before it goes to seed is one of the best ways neighbors and hikers can help slow its spread.
Key Findings
Research-grade observation confirmed in Charlton, NY, USA, contributing to tracking of this invasive species' range
Garlic mustard (Alliaria petiolata) produces allelopathic compounds that suppress mycorrhizal fungi, harming native plant communities
A single garlic mustard plant can produce hundreds of seeds annually, enabling rapid local population growth
chevron_right Technical Summary
A research-grade observation of garlic mustard was recorded in Charlton, NY, USA via iNaturalist. This invasive plant continues to spread across northeastern North America, outcompeting native wildflowers in forest understories.
Abstract Preview
Research-grade observation of garlic mustard in Charlton, NY, USA.
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Species Mentioned
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Alliaria petiolata, or garlic mustard, is a biennial flowering plant in the mustard family (Brassicaceae). It is native to Europe, western and central Asia, north-western Africa, Morocco, Iberia and the British Isles, north to northern Scandinavia, and east to northern Pakistan and Xinjiang in we...