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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 ...
Family Juglandaceae, genus Juglans sect. Rhysocaryon: 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.
This article is a list of diseases of black walnuts (Juglans nigra). Bacterial diseases ... Common Names of Diseases, The American Phytopathological Society
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.
Image Genus Living species Cyclocarya Iljinsk.: Cyclocarya paliurus - wheel wingnut; Juglans L.: J. ailantifolia Carr. – Japanese walnut; J. mandshurica Maxim. – Manchurian walnut or Chinese walnut
Back in May, the Social Security Association announced the most popular baby names of 2023 in the United States, with Olivia ranking as the most popular female name of the year. The name dethroned ...
Juglans: walnuts; Juglans cinerea: butternut Juglandaceae (walnut family) Yes IUCN (EN) 61 Juglans major: Arizona walnut Juglandaceae (walnut family) Yes Yes 66 Juglans microcarpa: little walnut Juglandaceae (walnut family) Yes Yes Yes Yes Yes 65 Juglans nigra: black walnut Juglandaceae (walnut family) Yes Yes Yes Yes Yes Yes Yes Yes Yes IUCN ...