4 PRICKL5 COMFREY AS A FORAGE CROP. 
DESCRIPTION OF PRICKLY COMFREY. 
The seed stalks of prickly comfrey reach a height of 2 to 4 feet and 
are surrounded by numerous long, heavy, rough leave- of a dark- 
green color somewhat mucilaginous in texture. (See fig. 1.) The 
bright-blue flowers are borne in nodding, one-sided cluster- (fig. 2, .1 . 
The roots are large and fleshy and in loose soil will reach a depth of 
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j^K-SBsppip 
Fig. I a planl »f prickly cotufrey in bloom. 
8 or 9 l'eet. The plant is hardy and will endure considerable cold or 
drought, making a very rapid growth when conditions are favorable. 
PROPAGATION OF THE PLANTS. 
A.lthough the prickly comfre} produces targe crops of seed, only a 
small percentage of this seed will germinate, so it is generally found 
more practicable to plant new held- by division of the roots than by 
l< if. 171 
