The Juglans nigra, commonly known as the Black Walnut tree, is native to the. More
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Black Walnut (Juglans nigra)
Native to North America, Black walnut is the tallest of the walnuts, with the potential to reach 100 feet and a diameter of 2 to 4 feet.. Trees range in height from 70-150 feet and have a diameter of 2-4 feet.
Black walnuts (Juglans nigra) are large, elegant trees, native in this country from Massachusetts to Florida and west to Minnesota and Texas.
Black walnuts (Juglans nigra L.) make beautiful shade trees and a pleasant tasting, if messy, hard to crack, edible nut. They're also valued for the lumber they produce. But black walnut trees are not always good companions for other plants.
Nuts - hard-shelled, usually one-seeded, indehiscent fruits, such as Juglans nigra (black walnut) or Carya illinoinensis (pecan).
Grain or Caryopsis - one-seeded, indehiscent fruit of most grasses, including the cereals.
The roots of Black Walnut (Juglans nigra L.) and Butternut (Juglans cinerea L.) produce a substance known as juglone (5-hydroxy-alphanapthaquinone). Persian (English or Carpathian) walnut trees are sometimes grafted onto black walnut rootstocks.
It's botanical name, Juglans, comes from the Latin name of the god Jupiter and glans, or walnut. In the Golden Age, walnuts were considered a food fit for the gods.
Carpathians thrive in western portions of Texas if they are grafted onto the native Central and West black walnuts Juglans microcarpa (Texas black walnut) or Juglans major (Arizona black walnut).
The walnut twig beetle (Pityophthorus juglandis) is causing major decline of Juglans nigra in Boulder, Westminster and Arvada. In addition, there have been multiple trunk and branch cankers caused by the fungus Fusarium solani on trees.
Black walnut trees (Juglans nigra) are the last trees to arrive in spring and the first trees to leave in the fall. They are known for their highly prized wood and delicious nuts.
English walnut. The walnut species (Juglans regia) used for the selection of commercial scion cultivars; origin believed in Persia (= Persian walnut).
entomophagous nematodes. Nematodes that eat insects.
With winter dieback, a 12-year-old Manchurian walnut (Juglans mandshurica) has attained a height of just 45 centimetres, and the bristlecone pine (Pinus aristata) and Ponderosa pine (P. ponderosa) looked so sorrowful that I took them out.
The outer layer of certain fruits like walnuts Juglans, as an outgrowth of the perianth or involucre.
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Though scores of plants are known to produce allelochemicals--Ailanthus (ailanthone), sorghum (sorgoline)--black walnut (Juglans nigra) is the poster plant for allelopathy.
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Sweetgum (Liquidambar styraciflua)
Tulip Tree (Liriodendron tulipifera)
Tupelo (Nyssa sylvatica)
Black Walnut (Juglans nigra)
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 See also: Plant, Nigra, Water, Berry, Flower
  
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