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Juglans regia, the common walnut [1] or Persian walnut [2] amongst other regional names, is a species of walnut. It is native to Eurasia in at least southwest and central Asia and southeast Europe, but its exact natural area is obscure due to its long history of cultivation.
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 nine or ten genera in the family have a total of around 50 species, [3] and include the commercially important nut-producing trees walnut (Juglans), pecan (Carya illinoinensis), and hickory (Carya). The Persian walnut, Juglans regia, is one of the major nut crops of the world.
A walnut is the edible seed of any tree of the genus Juglans (family Juglandaceae), particularly the Persian or English walnut, Juglans regia. They are accessory fruit because the outer covering of the fruit is technically an involucre and thus not morphologically part of the carpel; this means it cannot be a drupe but is instead a drupe-like nut.
(Juglans regia) Black walnut (Juglans nigra) J. regia originated in south eastern Europe, western/central Asia, and J. nigra originated in the eastern United States. The fruit is a pseudo-drupe with a green, semi-fleshy husk. [5]
Walnut tree species make up the genus Juglans, which belongs to the subtribe Juglandinae. Genera and species Image ... J. regia L. – common walnut, Persian, ...
Nogal (Juglans regia)Juglandales is an order of flowering plants.This order was recognised in several systems (e.g. Engler system and Wettstein system).The Cronquist system placed the order in the subclass Hamamelidae, as comprising the families Juglandaceae and Rhoipteleaceae, the latter consisting of only a single species.
Juglans nigra, Black Walnut; ... Juglans regia, Common ... an encyclopedia of characteristics for around 200 tree species native to the United States published by the ...