Native to 162 botanical countries across Europe, Africa, Temperate Asia, Tropical Asia, Northern America, and Southern America; introduced into Argentina Northeast, Argentina South, Azores, Chile Central, Chile South, Føroyar, Free State, Hawaii, New Zealand North, New Zealand South, Rwanda, Tasmania (source: POWO). Flora of the World documents 4 occurrences across 3 countries.
Location
United States, California, Sonoma County (Glen Ellen)
38.37466, -122.512543
Location Remarks
12841 Sonoma Highway, Glen Ellen
Collectors
No collectors specified
Location
Italy, Abruzzo
42.226111, 14.553611
Location Remarks
Riserva Naturale Torino di Sangro. Strada Communale Lentisco.
Collectors
Location
Japan, Chubu, Aichi
35.039167, 137.185
Location Remarks
Foresta Hills. Address: 1-1, Ipponmatsu, Iwakura-cho, Toyota-shi. 10 minutes drive from Head office of Toyota Motor Corporation Ltd., but there is also access from the Isewangan Expressway, Tokai-Kanjo Expressway, and Tomei Expressway
Collectors
No collectors specified
Location
Japan, Kansai, Shiga
35.418333, 136.405
Location Remarks
Ibukiyama (Mount Ibuki).
Collectors
No collectors specified
Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Fagales
Family
Betulaceae
Genus
Alnus
Authorship
Mill.