Nuts are hard, dry, single-seeded fruits which do not open at maturity. Nuts provide nourishment for any animals that are able to open the shells. Many fruits are called nuts, even though biologists would not classify them as such.


Filbert, a flavorful nut with a brittle shell. Most cultivated filberts are obtained from hybrids of the European hazel, giant hazel, and cobnut trees.

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  • Hazel


    Hazel, or Hazelnut, a shrub or small tree of the birch family. Hazels grow in the temperate regions of Europe, Asia, and North America. See more »

  • Nuts


    Nut, a term commonly used for an edible or commercially useful seed covered with a hard shell. See more »

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