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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 hopeiensis (Chinese: 麻核桃), also known as Ma walnut, [2] is a species of walnut native to northern Hebei Province. [3] Some scholars believe that the species is a hybrid of Juglans regia and Juglans mandshurica. [4] [1] Currently, it is a threatened tree species. [2]
J. cinerea is a deciduous tree growing to 30 metres (98 ft) tall, rarely more. [5] Butternut is a slow-growing species, and rarely lives longer than 75 years. It has a 40–80 cm (16–31 in) stem diameter, with light gray bark.
The trees are wind-pollinated, and the flowers are usually arranged in catkins. The fruits of the Juglandaceae are often confused with drupes but 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.
Walnut tree species make up the genus Juglans, which belongs to the subtribe Juglandinae. Genera and species. Image Genus Living species Cyclocarya Iljinsk.
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.
Wallia, Walha or Vallia (Spanish: Walia, Portuguese Vália), (c. 385 – 418) was king of the Visigoths from 415 to 418, earning a reputation as a great warrior and prudent ruler. He was elected to the throne after Athaulf and Sigeric were both assassinated in 415.
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.
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