DOUGLAS HONEYSUCKLE 



Lonicera glaucescens Rydberg 



The Douglas honeysuckle is often found in the foothill valleys of 

 the Canadian Rockies. In shade the flowers are orange, but they take 

 a deeper hue of red or copper in situations more exposed to the sun. 

 The leaves of the uppermost pair of each twig are expanded at the 

 base and united to form a shallow cup, from which the flowers arise. 

 The stiff, woody old branches from which the flowering stems grow 

 are firmly intertwined with the branches of their supporting bush. 

 When growing in the open, the vine forms a mass of twisted stems 

 near the ground. The green leaves make an exquisite background for 

 the flowers. 



This plant ranges from Pennsylvania to Oklahoma and north to 

 Ontario, Alberta, and British Columbia. 



The specimen sketched was collected in July, on the shores of Lake 

 Minnewonka, ten miles from Banff, Alberta, Canada, at an altitude of 

 4,500 feet. 



PLATE 8l 



