Dryadoideae

The Dryadoideae subfamily of the Rosaceae consists of four genera, 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.

Dryadoideae

The Dryadoideae subfamily of the Rosaceae consists of four genera, 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.