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)

Narrower term/s

• Alnus (genus)[+]
  • Alnus cremastogyne (species)
  • Alnus pendula (species)
  • Alnus crispa (species)
  • Alnus sinuata (species)
  • Alnus glutinosa (species)
  • Alnus viridis (species)
  • Alnus rubra (species)
  • Alnus maritima (species)
  • American green alder (plants) [+]
    • Alnus crispa (species) [NP]
    • Alnus sinuata (species) [NP]
    • Alnus fruticosa (species) [NP]
  • Alnus fruticosa (species)
• Betula (genus)[+]
  • Betula pubescens (species)
  • Betula nana (species)
  • Betula populifolia (species)
  • Betula utilis (species)
  • Betula papyrifera (species)
  • Betula nigra (species)
  • Betula pendula (species)
  • Betula lenta (species)
  • Betula alleghaniensis (species)
• Carpinus (genus)[+]
  • Carpinus betulus (species)
• Ostrya (genus)[+]
  • Ostrya virginiana (species)
  • Ostrya carpinifolia (species)
• Corylus (family)

Anotations

Scope note:

Betulaceae is the birch family of flowering plants, usually placed in the order Fagales; some authorities, however, have placed the family in the order Betulales. The family contains six genera and 120-150 species. Although not done in this hierarchy, it is elsewhere sometimes divided into two subfamilies: Betuloideae, with the genera Betula (birch) and Alnus (alder); and Coryloideae, with the genera Carpinus (hornbeam), Corylus (hazel, or filbert), Ostrya, and Ostryopsis.