<Li> Hornbeam (Carpinus) </Li> <P> A small nut may be called a "nutlet". In botany, this term specifically refers to a pyrena or pyrene, which is a seed covered by a stony layer, such as the kernel of a drupe . Walnuts and hickories (Juglandaceae) have fruits that are difficult to classify . They are considered to be nuts under some definitions, but are also referred to as drupaceous nuts . "Tryma" is a specialized term for hickory fruits . </P> <P> In common use, a "tree nut" is, as the name implies, any nut coming from a tree . This most often comes up regarding allergies, where some people are allergic specifically to peanuts, others to a wider range of nuts that grow in trees . </P> <P> A nut in cuisine is a much less restrictive category than a nut in botany, as the term is applied to many seeds that are not botanically true nuts . Any large, oily kernels found within a shell and used in food are commonly called nuts . </P>

Whats the difference between tree nuts and nuts
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