), black cherry ( Prunus serotina ), cucumbertree ( Magnolia acuminata ), white ash ( Fraxinus americana ), American basswood ( Tilia americana ), black walnut ( Juglans nigra ), butternut ( J. cinerea ), and yellow-poplar ( Liriodendron tulipifera ).

Other tree associates of black oak include pignut hickory ( Carya glabra ), mockernut hickory ( C. tomentosa ), bitternut hickory ( C. cordiformis ), and shagbark hickory ( C. ovata ); American elm ( Ulmus americana ) and slippery elm ( U. rubra ); white ash ( Fraxinus americana ); black walnut ( Juglans nigra ) and butternut ( J. cinerea ); scarlet oak ( Quercus coccinea ), southern red oak ( Q. falcata ), and chinkapin oak ( Q. muehlenbergii ); red maple ( Acer rubrum ) and sugar maple ( A. saccharum ); black cherry ( Prunus serotina ); and blackgum ( Nyssa sylvatica ).

The most serious disease of Juglans cinerea is butternut decline or butternut canker.

es: Juglans cinerea

* Juglans cinerea, J. nigra, J. sieboldiana

* Juglans cinerea

Juglans regia is a large, deciduous tree attaining heights of 25 – 35 m, and a trunk up to 2 m diameter, commonly with a short trunk and broad crown, though taller and narrower in dense forest competition.

Juglans is a plant genus of the family Juglandaceae, the seeds of which are known as walnuts.

The two species hybridise readily ; the resulting hybrid Juglans x bixbyi ( otherwise known as J. cinera x ailantifolia or ' Buartnut ') is also resistant to canker and is likewise planted as a replacement for Butternuts.

** Butternut ( Juglans )

* Walnut ( Juglans ) is typically dark, hard, tight-grained wood prized for fine furniture and wood paneling.

* Juglans ( Walnut )

The California Black Walnut ( Juglans californica ), endemic to California, grows on the northern side of the mountains in the Valley and Griffith Park.

The predominant native tress are Coast Live Oak ( Quercus agrifolia ), California Black Walnut ( Juglans californica ), and California Sycamore ( Platanus racemosa ).

The suburban flora includes Japanese Yew ( Taxus cuspidata ), Amur Velvet, Manchurian Walnut ( Juglans mandschurica ), Ermann's Birch ( Betula ermannii ), Eleutherococcus, Lotus ( Nelumbo nucifera, a rare and very beautiful water-plant that can be found in several small lakes twelve kilometers from Arsenyev ).

Tree species for which the forest is important include bigcone Douglas-fir ( Pseudotsuga macrocarpa ), Coulter Pine ( Pinus coulteri ), and California Walnut ( Juglans californica ).

), Common Walnut ( Juglans regia ), maple ( Acer spp.

* Juglans – Walnut

Among the trees are American Sycamore ( Platanus occidentalis ), Bald Cypress ( Taxodium distichum ), Black Walnut ( Juglans nigra ), Pecan ( Carya illinoinensis ), Green Ash ( Fraxinus pennsylvanica ), Black Willow ( Salix nigra ), Chinkapin Oak ( Quercus muehlenbergii ), Lacey Oak ( Quercus laceyi ), Texas Red Oak ( Quercus buckleyi ), Juniper, Florida Basswood ( Tilia caroliniana ) and Bigtooth Maple ( Acer grandidentatum ) ( the latter of which was discovered far removed from any maple forest, and thus gave the area the name " lost maples ").

* Juglans, Walnut

Juglans californica | California Black Walnut ( Juglans californica ) tree, planted circa 1860s.

To the west of the main house is a large California Black Walnut ( Juglans californica ) tree that was most likely planted by Juventino del Valle in the 1860s.

Some plants produce natural herbicides, such as the genus Juglans ( walnuts ), or the tree of heaven ; such action of natural herbicides, and other related chemical interactions, is called allelopathy.

The genus Juglans is divided into four sections.

* The genus Juglans is monophyletic ;

Juglans is sister to Sect.

A second example is the black walnut tree ( Juglans nigra ), which secrete juglone, a chemical that harms or kills some species of neighboring plants.

The Persian walnut, Juglans regia, is one of the major nut crops of the world.

Juglans nigra, the eastern black walnut, a species of flowering tree in the walnut family, Juglandaceae, is native to eastern North America.

This zone is habitat for many other important tree and large shrub species such as Abies pindrow, Betula utilis, Buxus rugulosa, Benthamidia capitata, Corylus ferox, Deutzia staminea, Euonymus tingens, Abies spectalbilis, Acanthopanax cissifolius, Acer campbellii, Acer pectinatum, Betula alnoides, Coriaria terminalis, Fraxinus macrantha, Dodecadenia grandiflora, Eurya cerasifolia, Hydrangea heteromala, Ilex dipyrena, Ligustrum spp., Litsea elongata, Juglans regia, Lichelia doltsopa, Myrsine capitallata, Neolitsea umbrosa, Philadelphus tomentosus, Osmanthus fragrans, Prunus cornuta, Rhododendron companulatum, Sorbus cuspidate, and Viburnum continifolium.

Famous Juglans sigillata is a commonplace in Astara woods.

Juglans regia, the Persian walnut, English walnut, or especially in Great Britain, common walnut, is an Old World walnut tree species native to the region stretching from the Balkans eastward to the Himalayas and southwest China.

In the U. S., J. regia is often grafted onto a rootstock of a native black walnut, Juglans hindsii to provide disease resistance.

* The Nut Tree Collection is a grove planted by Frances Bartlett which includes Carya illinoinensis ( pecans ), Juglans sp.

Arslanbob (; Uzbek: Arstanbap ) is small town, sub district, valley, mountain range, and a large wild walnut ( Juglans regia ) forest in the Jalal-Abad Province of Kyrgyzstan.

The walnut Juglans regia is native to a wide region in Central Asia.

It is related to the hickories, and was formerly included in the same genus Carya, as Carya sinensis, but also shares a number of characters with the walnuts in the genus Juglans.

A study of sequenced nuclear DNA from the external transcribed spacer ( ETS ) of ribosomal DNA ( rDNA ), the internal transcribed spacer ( ITS ) of rDNA, and the second intron of the LEAFY gene taken from at least one individual of most of the species of Juglans has supported several conclusions:

* Juglans species throughout the world

* Any species of the genus Juglans

The black walnut ( Juglans nigra ) produces the allelochemical juglone, which affects some species greatly while others not at all.