| 
BLACK COTTONWOOD WW &\ | 
} a a ee aes a 
Populus trichocorpa ae OS a t | 
MILES ce Sai 
100 =O 400 =~ CALIF. \ N. ME” 
SS eltea : ARIZ. | 
(Le ie ee 
Ne 
2 = — 
% + sees 
POPULUS TRICHOCARPA TORREY AND GRAY Dae BLACK COTTONWOOD 
(Distribution of black cottonwood is shown as one species, although dendrologists separate black cottonwood (Populus trichocarpa Torrey and Gray) from 
the northern black cottonwood (Populus trichocarpa hastata Henry), the latter extending northward from the California line and into Nevada.) 
2399—38——11 
