GENERA INCLUDED IN KEY BY FAMILY 3 



Taxaceae 

 Taxus 



Pinaceae 



Juniperus 



Compositae 

 Artemisia 

 Chrysothamnus 



Rosaceae 



Amelanchier 



Cercocarpus 



Crataegus 



Holodiscus 



Physocarpus 



Prunus 



Purshia 



Rosa 



Rubus 



Sorbus 



Spiraea 



Saxifragaceae 

 Philadelphus 

 Ribes 



Aceraceae 

 Acer 



Salicaceae 

 Populus 

 Salix 



Betulaceae 

 Alnus 

 Betula 



Cornaceae 

 Cornus 



Ericaceae 



Arctostaphylos 

 Ledum 

 Menziesia 

 Vaccinium 



Anacardiaceae 

 Rhus 



Rhamnaceae 

 Ceanothus 

 Rhamnus 



Caprifoliaceae 

 Lonicera 

 Sambucus 

 Symphoricarpos 



Elaeagnaceae 

 Shepherdia 



Celastraceae 

 Pachistima 



3 As classified in Lawrence, George H. M. Taxonomy of 

 Vascular Plants. New York: The MacMillan Co. 1951. 



