Summary ²

The tree species Sorbus americana (syn. Pyrus americana) is commonly known as the American Mountain-ash. It is a relatively small (height 12 meters / 40 feet) deciduous perennial tree, native to northern North America and the Appalachian Mountains. Its conspicuous white spring flowers and winter persistent orange fruit make it one of our most recognizable trees.

Sources and Credits

1. (c) Kingsbrae Garden, some rights reserved (CC BY-NC-SA), http://www.flickr.com/photos/32598399@N00/2577515373
2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Sorbus_americana

More Info

• iNat taxon page
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Calflora
• CalPhotos
• eFloras.org
• Flora of North America (beta)
• Global Biodiversity Information Facility (GBIF)
• Go Botany
• HOSTS - a Database of the World's Lepidopteran Hostplants
• IPNI (with links to POWO, WFO, and BHL)
• Jepson eFlora
• Maryland Biodiversity Project
• NatureServe Explorer 2.0
• SEINet Symbiota portals
• Tropicos
• USDA PLANTS database
• VASCAN by Canadensys
• World Flora Online

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