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Juglans nigra, the eastern American black walnut, is a species of deciduous tree in the walnut family, Juglandaceae, native to central and eastern North America, growing mostly in riparian zones. Black walnut is susceptible to thousand cankers disease , which provoked a decline of walnut trees in some regions.
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 ...
Juglans hindsii, commonly called the Northern California black walnut and Hinds's black walnut, is a species of walnut tree native to the western United States (California and Oregon). [ 1 ] [ 2 ] [ 3 ] It is commonly called claro walnut by the lumber industry and woodworkers, and is the subject of some confusion over its being used as ...
The binomial name often reflects limited knowledge or hearsay about a species at the time it was named. For instance Pan troglodytes, the chimpanzee, and Troglodytes troglodytes, the wren, are not necessarily cave-dwellers. Sometimes a genus name or specific descriptor is simply the Latin or Greek name for the animal (e.g. Canis is Latin for ...
During the Byzantine era, the walnut was also known by the name "royal nut". [8] An article on walnut tree cultivation in Spain is included in Ibn al-'Awwam's 12th-century Book on Agriculture. [9] The wal element in the name is Germanic and means foreign, especially in the sense of Latin or non-Germanic. Compare, for example, Wales, Walloons ...
The Juglandaceae are a plant family known as the walnut family. They are trees , or sometimes shrubs, in the order Fagales . Members of this family are native to the Americas , Eurasia , and Southeast Asia .
Juglans nigra, the eastern black walnut, a species of flowering tree native to eastern North America. Juglans californica, California black walnut or Southern California black walnut. Juglans hindsii, the Northern California walnut or Hinds' black walnut. Juglans major, Arizona black walnut. Juglans microcarpa, Texas black walnut or little ...
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.