Juglans - Wikipedia
网页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.
Juglans regia - Wikipedia
网页Juglans regia, the Persian walnut, English walnut, Carpathian walnut, Madeira walnut, [2] or, especially in Great Britain, common walnut, [1] is an Old World walnut tree species native to the region stretching from the Caucasus eastward to the Kashmir region.
Juglans nigra - Wikipedia
网页Juglans nigra, the eastern American black walnut, is a species of deciduous tree in the walnut family, Juglandaceae, native to North America. It grows mostly in riparian zones, from southern Ontario, west to southeast South Dakota, south to Georgia, northern Florida and southwest to central Texas.
Juglans regia - Plant Finder - Missouri Botanical Garden
网页Juglans regia, commonly called English walnut or Persian walnut, is native to Asia and southeast Europe (Balkans). It is a deciduous tree that typically grows 40-60’(less frequently to 100’) tall with and a spreading rounded crown.
Walnut | Tree, Nut, Species, Uses, & Facts | Britannica
网页2024年8月16日 · Walnut, genus of about 20 species of deciduous trees of the family Juglandaceae, native to North and South America, southern Europe, Asia, and the West Indies. Several species are cultivated for their edible nuts and valuable timber. Learn more about walnut trees with this article.
How to Grow and Care for English Walnut - The Spruce
网页2023年11月1日 · The large, oddly-named English walnut tree (Juglans regia), which is actually native to central Asia, is a beautiful and useful tree for its aesthetics, shady canopy, and food-growing abilities alike. The English walnut is incredibly low maintenance, just avoid hot weather and humid climates and aim for full sun.
A Brief History of Juglandaceae - Arnold Arboretum
网页2021年2月24日 · The oldest known fossil record of the genus, a species named Juglans clarnensis, was discovered in North America and dates back forty-four million years, while the oldest European specimen of J. bergomensis is around thirty-three million years old.
Juglans regia - North Carolina Extension Gardener Plant Toolbox
网页Quick ID Hints: deciduous tree, 40 to 60 feet tall, spreading, rounded crown. gray and smooth bark, develops ridges with a diamond pattern. odd-pinnately compound leaves 12 to 18 inches long with 5 to 11 oblong leaflets with a citrus fragrance when crushed.
USDA Plants Database
网页The PLANTS Database includes the following 107 data sources of Juglans L. - Showing 1 to 25 «
Juglans - Trees and Shrubs Online
网页Juglans is easy to distinguish from Carya by its chambered pith, seen by splitting a twig lengthwise, and from the remaining genera by its wingless fruits containing large, thick-shelled nuts. The recent work of Kozlowski et al. (2018) gives a broad, copiously illustrated overview of the family.
跳至内容