Summary ²

Alder is the common name of a genus of flowering plants (Alnus) belonging to the birch family Betulaceae. The genus comprises about 30 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone.

Sources and Credits

1. (c) Erik Jørgensen, some rights reserved (CC BY-NC-SA), http://www.flickr.com/photos/30108199@N00/2368390973
2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Alnus

More Info

• iNat taxon page
• Biodiversity Heritage Library
• BOLD Systems BIN search
• eFloras.org
• Global Biodiversity Information Facility (GBIF)
• Ontario Trees
• SEINet Symbiota portals
• Tropicos

iNat Map