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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.
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.
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.
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 ...
Arslanbob (Kyrgyz: Арстанбап) is a village, sub district, valley, mountain range, and a large forest of wild walnut (Juglans regia) in the Jalal-Abad Region of Kyrgyzstan. Kyrgyzstan's first known export to Europe was the Arslanbob walnut. [1]
Thousand cankers disease (TCD) is a recently recognized disease of certain walnuts (Juglans spp.). The disease results from the combined activity of the walnut twig beetle (Pityophthorus juglandis) and a canker producing fungus, Geosmithia morbida. [1]
[1] [2] The walnut species found in Nepal is Juglans regia, [3] which is known locally as okhar. [4] The okhar tree is native to the mountainous areas of Central Asia, including Nepal. [3] [5] It is grown in the country's High Mountains region with an elevation of 1000- 4000 m. [6] Walnut trees can be found across the temperate regions of the ...
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.