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(wing nuts; family Juglandaceae)

A genus of deciduous trees that have large, pinnate leaves. The twigs have septate pith and buds are usually naked. The flowers are in unisexual catkins. The fruit is a nut with 2 leafy wings. The trees yield useful timber. There are 6 species, occurring from the Caucasus to Japan.

Subjects: Plant Sciences and Forestry.

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