Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. Living Organisms (hierarchy name)
4. living organisms (entities)
5. Eukaryota (domain)
6. Plantae (kingdom)
7. Angiospermae (division)
8. Magnoliopsida (class)
9. Rosanae (superorder)
10. Fagales (order)
11. Juglandaceae (family)
12. Juglans (genus)

Anotations

Scope note:

Species of tall deciduous walnut tree native to eastern and mid-western sections of North America, having a strong, durable wood used for furniture and other products and edible nuts. A dark brown dye is made from the nut husks and tree leaves. A drying oil obtained from pressing the nut kernel is used for artists' paints. Powdered walnut shells are used as a filler in plastics. Where the range of J. nigra overlaps that of the Texas black walnut J. microcarpa, the two species sometimes interbreed, producing populations with characteristics intermediate between the two species.