Dryadoideae

Dryadoideae
	Dryas × suendermannii
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Rosales
Family:	Rosaceae
Subfamily:	Dryadoideae; (Lam. & DC.) Sweet
Genera
	Cercocarpus Kunth; Chamaebatia Benth.; Dryas L.; Purshia DC. ex Poir. (including Cowania);

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.

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