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  2. Juglans nigra - Wikipedia

    en.wikipedia.org/wiki/Juglans_nigra

    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.

  3. Juglandinae - Wikipedia

    en.wikipedia.org/wiki/Juglandinae

    Walnut tree species make up the genus Juglans, which belongs to the subtribe Juglandinae. Genera and species. Image ... J. nigra L. – Eastern black walnut;

  4. Black walnut (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Black_Walnut_(disambiguation)

    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.

  5. Juglans - Wikipedia

    en.wikipedia.org/wiki/Juglans

    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 ...

  6. Thousand cankers disease - Wikipedia

    en.wikipedia.org/wiki/Thousand_cankers_disease

    The walnut twig beetle is a normal associate of Arizona walnut and was first described in 1929 from a collection near Silver City (Lone Mountain) in Grant County, New Mexico. Subsequent reviews of North American bark beetles through 1992 only note walnut twig beetles from areas within the range of Arizona walnut, excepting the two 1959 captures ...

  7. Juglans microcarpa - Wikipedia

    en.wikipedia.org/wiki/Juglans_microcarpa

    Juglans microcarpa, known also as the little walnut, [2] Texas walnut, Texas black walnut or little black walnut (as it belongs to the "black walnuts" section Juglans sect. Rhysocaryon), is a large shrub or small tree (10–30 ft tall) which grows wild along streams and ravines in Texas, New Mexico, Oklahoma, and Kansas, and the northernmost states of Mexico.

  8. List of nitrogen-fixing-clade families - Wikipedia

    en.wikipedia.org/wiki/List_of_nitrogen-fixing...

    The trees of this subgroup dominate many temperate forests. [6] Cannabis , with the psychoactive drug tetrahydrocannabinol (THC), has been used recreationally and ceremonially for at least 2400 years, but was in cultivation at least 6000 years before that for its oils and for making fabric and rope. [ 7 ]

  9. List of trees of Texas - Wikipedia

    en.wikipedia.org/wiki/List_of_trees_of_Texas

    The following is a list of widely known trees and shrubs found in Texas. [3] [4 ... Betula nigra: river birch Betulaceae (birch family ... Juglans: walnuts; Juglans ...