Species by Genus: Fagus
- Fagus aenea
- Fagus alpina
- Fagus americana
- Fagus argentea
- Fagus carronii
- Fagus castanea
- Fagus crenata
- Fagus cunninghamii
- Fagus engleriana
- Fagus ferruginea
- Fagus grandifolia
- Fagus grandifolia var. caroliniana
- Fagus longipes
- Fagus longipetiolata
- Fagus lucida
- Fagus menziesii
- Fagus mexicana
- Fagus moesiaca
- Fagus moorei
- Fagus nervosa
- Fagus orientalis
- Fagus sp.
- Fagus sylvatica
- Fagus taurica
- Fagus truncata