'Juglans' can also refer to...



Root growth dynamics linked to above-ground growth in walnut (Juglans regia)

Flowering Phenology and Wind-pollination Efficacy of Heterodichogamous Juglans mandshurica (Juglandaceae)

Periods of Organogenesis in Mono‐ and Bicyclic Annual Shoots of Juglans regia L. (Juglandaceae)

Genotypic Differences in Branching Pattern and Fruiting Habit in Common Walnut (Juglans regia L.)

Involvement of peroxidases in the formation of the brown coloration of heartwood in Juglans nigra

Considerations regarding black walnut (Juglans nigra) culture in the north-west of Romania

The use of treeshelters and application of stumping in the establishment of walnut (Juglans regia)

Parameterization and testing of a biochemically based photosynthesis model for walnut (Juglans regia) trees and seedlings

Morphological and molecular methods to identify butternut (Juglans cinerea) and butternut hybrids: relevance to butternut conservation†

Frost hardiness in walnut trees (Juglans regia L.): How to link physiology and modelling?

Height growth and flushing in common walnut (Juglans regia L.): 5-year results from provenance trials in Great Britain

Early growth and form of common walnut (Juglans regia L.) in mixture with tree and shrub nurse species in southern England

Limited plasticity of shoot preformation in response to light by understorey saplings of common walnut (Juglans regia)

Somatic embryogenesis, micropropagation and plant regeneration of “Early Mature” walnut trees (Juglans regia) that flower in vitro

Expression of genes encoding chalcone synthase, flavanone 3-hydroxylase and dihydroflavonol 4-reductase correlates with flavanol accumulation during heartwood formation in Juglans nigra

Competition for water between walnut seedlings (Juglans regia) and rye grass (Lolium perenne) assessed by carbon isotope discrimination and δ18O enrichment

Carbohydrate uptake from xylem vessels and its distribution among stem tissues and buds in walnut (Juglans regia L.)


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(walnut; family Juglandaceae)

A genus of deciduous, nut-bearing trees, up to 30 m tall, that have twisting, spreading branches. They have large, oily, deeply lobed cotyledons. The leaves are compound. Male and female catkins occur on the same tree, the male catkins dangling in the wind, the female catkins upright. They produce oval, green fruits (a drupe) with a fleshy exocarp and a bony endocarp (the shell, see pericarp), which splits down the midrib. The wrinkled, woody nut is eaten fresh or pickled, and used in desserts, cakes, and confectionery. The most popular garden species are J. regia (Persian walnut), J. nigra (black walnut), and J. cinerea of N. America, the butter-nut. The wood is used for furniture. There are 21 species, occurring mainly in northern temperate regions, but extending to the tropics and native to Asia and America.

Subjects: Plant Sciences and Forestry.

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