Suillus weaverae – Butterball Bolete

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The butterball bolete (Suillus weaverae) is an edible mushroom that fruits summer-fall. It is often one of the first boletes to fruit.
The mushroom has an orange-brown, slippery cap and small glandular dots on the stem. The cap may develop a patchwork pattern as it ages. The pore surface is white at first, becoming yellow with age. Spore print is brown. This mushroom only associates with the eastern white pine tree.
The butterball bolete is often confused for the weeping bolete (Suillus granulatus) which is primarily a European species that associates with imported pines with 2-3 needles. The weeping bolete is also edible.
The butterball bolete has a mild to slightly sour taste. Younger mushrooms are more palatable. The cap skin is often peeled due to the slimy texture. It can then be added to soups, stews, or stir fries.

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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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