Photo of Juglans nigra (black walnut)

Juglans nigra - Black Walnut  - Commonly called black walnut, is a large deciduous tree typically growing 75-100’ (less frequently to 125’) tall with and an oval to rounded crown. Mature trees characteristically have long trunks, often with an absence of lower branching. Fissured, sharply ridged, dark gray-black bark forms diamond patterns. Features odd-pinnate compound leaves (to 24” long), each with 13-23 oblong to lanceolate leaflets. The terminal leaflet is often missing. Leaves are late to emerge in spring and early to drop in fall. Leaves are strongly aromatic when crushed. Fall color is an undistinguished yellow. Yellow green monoecious flowers appear in late spring (May-June), the male flowers in drooping hairy catkins and the female flowers in short terminal spikes. Female flowers give way to edible nuts, each being encased in a yellow-green husk. Nuts mature in autumn, falling to the ground where the husks blacken as they rot away. Kernels are edible but hard to extract.. Family : Juglandaceae

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Author : Monique Dumas-Quesnel
Photo # : 24266
Online since: February 3th 2017