To drown black

The to drown black ( Juglans will nigra ) is large a Arbre of the family of the Juglandacée S, originating in North America, largely cultivated for its Fruit S, its Bois and its decorative qualities.

Description

Large tree, being able to reach 50 m in height. The trunk forms a very slim barrel, stripped partly low. The bark of very dark color was worth name to him “to drown black”.

Sheet S large (approximately 60 cm length), null and void, alternate, made up imparipennées comprising 15 to 25 leaflets; lancéolées leaflets on toothed board.

Many male flowers joined together in kittens, female flowers grouped by two. The Fruit S are Drupe S containing of the Noix from 4 to 5 cm in diameter of subglobuleuse form, with very hard rough hull.

Wood is heavy, homogeneous, of color brown dark and very resistant to moisture.

Distribution

This species is originating in half is the United States, until the Texas and with the Minnesota, and of the Canada (Ontario and Quebec). It is very abundant in the Monts Alleghanys.

It was introduced in Europe as of 1656 by John Tradescant the young person (1608-1662). It there was easily acclimatized and is spontaneously resown.

Use

The black walnut tree is sometimes used as Porte-greffe for the varieties of common walnut trees because that accelerates the setting with fruit. Moreover, the black walnut tree resists in particular the Pourridié in the wet grounds. On the other hand, the tree thus grafted will live only one forty years compared with a hundred with a Clerc's Office on drowning common.

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