3 Bird cherry {Prunus 

 6 Bitter cherry {Prunus 



Cherry and Plum Leaves and Twigs 

 Leaves. 1 Choke cherry {Prunus virginiana). 2 Black cherry (Prunus serotina). 



pennsylvanica). 4 Canada plum (PrnM5mgrc). 5 Western choke cherry (Pr units do), 



emarginata). 



Twigs. 1 Black cherry {Prunus serotina). 2 Bitter cherry (Prunus emarginata). 3 Choke cherry (Prunus 



virginiana). 4 Canada plum (Prunus nigra). 5 and 6 Bird cherry (Prunus pennsylvanica). 7 Western choke cherry 



(Prunus demissa). 



181 



