Juglans

Juglans
Juglans major
Morton Arboretum acc. 614-47*1
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Juglandaceae
Subfamily: Juglandoideae
Tribe: Juglandeae
Subtribe: Juglandinae
Genus: Juglans
L.
Type species
Juglans regia
Species

See text

Native ranges of Juglans spp.
Synonyms[1]

Wallia Alef

Walnut trees are any species of tree in the plant genus Juglans, the type genus of the family Juglandaceae, the seeds of which are referred to as walnuts. All species are deciduous trees, 10–40 metres (33–131 ft) tall, with pinnate leaves 200–900 millimetres (7.9–35.4 in), with 5–25 leaflets; the shoots have chambered pith, a character shared with the wingnuts (Pterocarya), but not the hickories (Carya) in the same family.

The 21 species in the genus range across the north temperate Old World from southeast Europe east to Japan, and more widely in the New World from southeast Canada west to California and south to Argentina.

Edible walnuts, which are consumed worldwide, are usually harvested from cultivated varieties of the species Juglans regia. China produces half of the world total of walnuts.

  1. ^ "Tropicos | Name - Juglans L." www.tropicos.org. Retrieved 29 June 2016.

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