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. Rosales (order)
11. Ulmaceae (family)
12. Ulmus (genus)

Anotations

Scope note:

Species of tall, deciduous tree that grew widely in the eastern half of North America, and was popularly used for lumber, shade, and ornamentation prior to the 1930's. The hard, tough coarse-grain wood was also used for ship building because it bends well and does not splinter. Dutch elm disease, a fungus carried by the elm-leaf beetle, has systematically killed many of these trees.