Dryadoideae
The subfamily Dryadoideae consists of four genera in the family Rosaceae, all of which contain representative species with root nodules that host the nitrogen-fixing bacterium Frankia. They are subshrubs, shrubs, or small trees with a base chromosome number of 9, whose fruits are either an achene or an aggregate of achenes. It includes five genera (Dryas, Cercocarpus, Chamaebatia, Cowania, and Purshia), all of which except the first only occur in North America.
4 branches of this subfamily, most-observed first
mountain mahoganies
genusCercocarpus
Mountain-Avens
genusDryas
Cliffroses and Bitterbrushes
genusPurshia
Mountain Miseries
genusChamaebatia
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the stacks
Searching the stacks…
Every page naming Dryadoideae in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 901675.