alder genus

Family: Betulaceae

Species
1. Alnus cordata (Italian)
2. Alnus formosana (Formosan)
3. Alnus glutinosa (black)
4. Alnus japonica (Japanese)
5. Alnus maximowiczii (montane)
6. Alnus nepalensis (Nepalese)
7. Alnus rubra (red)
8. Alnus sieboldiana (オオバヤシャブシ)
9. Alnus subcordata (Caucasian)
10. Alnus viridis (green)

Photos from species in Alnus.