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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 ...
A list of tree species, grouped generally by biogeographic realm and specifically by bioregions, and shade tolerance. Shade-tolerant species are species that are able to thrive in the shade, and in the presence of natural competition by other plants.
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
(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]
Juglone occurs naturally in the leaves, roots, husks, fruit (the epicarp), and bark of plants in the Juglandaceae family, particularly the black walnut (Juglans nigra), and is toxic or growth-stunting to many types of plants. [1] It is sometimes used as an herbicide, as a dye for cloth and inks, and as a coloring agent for foods and cosmetics.
Launched in 1999, the Neo Geo Pocket Color was SNK’s answer to Nintendo’s Game Boy Color. Though it hoped to revolutionize handheld gaming, the console ultimately fell short due to its shorter ...
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.