Menispermum canadense – Common Moonseed

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Common moonseed (Menispermum canadense) is a perennial native vine that produces clusters of blue-black berries in the fall. It is a toxic look-a-like to grapes.
Common moonseed grows in clearings of woodlands.
It can be differentiated from grapes by its smooth leaves and lack of tendrils. Berries have a single crescent-shaped seed inside. Grapes have toothed leaves, tendrils, and multiple small seeds in the berries.
The entire common moonseed plant is toxic, especially the berries and seeds. Ingestion can cause irregular heartbeat, seizures, vomiting, and potentially death.

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Written by Amy Demers, founder of the Connecticut Foraging Club. To learn more about foraging in Connecticut, check out our upcoming classes.

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