Dryadoideae | |
---|---|
Dryas × suendermannii | |
Scientific classification | |
Kingdom: | Plantae |
(unranked): | Angiosperms |
(unranked): | Eudicots |
(unranked): | Rosids |
Order: | Rosales |
Family: | Rosaceae |
Subfamily: | Dryadoideae (Lam. & DC.) Sweet |
Genera | |
Cercocarpus Kunth |
The Dryadoideae subfamily of the Rosaceae consists of four genera,[1] all of which share root nodules that host the nitrogen-fixing bacterium Frankia[2]. They are sub-shrubs, shrubs, or small trees with a base chromosome number of 9, whose fruits are either an achene or an aggregate of achenes.[1]