62 



SOURCES OF NECTAR 



Union, as well as Canada and Mexico (Fig. 29). They are 

 perennial herbs, blooming in late summer and autumn, mostly 



Fig. 29. — The golden rod is an important source of fall nectar in some localities. 



with bright yellow flowers. At least eighty recognized species are 

 recorded. 



The golden rod is an important source of nectar in many 



