DRUMMOND WILLOW 
Salix drummondiana Barratt 
In the Canadian Rockies, as late summer artives, this willow is 
clothed in its most beautiful garb. Each branch is adorned with loose 
masses of fluffy cotton, consisting of the seeds and the adhering 
plumes. These masses ate blown fat and wide by the wind, and if the 
plants happen to grow near streams, a windrow of cotton often ac- 
cumulates along their moist margins. Later this is caught by the water 
and cattied far down stream. 
Drummond willow has a narrow range, bein g confined to Alberta 
and British Columbia. 
The sketch was made from a specimen that gtew at Sheep Creek, 
seventy-five miles by trail from Lake Louise, Alberta, at an altitude 
of 6,000 feet. 
PLATE 380 
