DESCRIPTIVE MANUAL 



27 



Vanilla or Holy Grass (Hierochloe borealis Roem. and Schultes). 

 Description. — A perennial grass with creeping, fragrant root- 

 stocks, Yo ft. high; panicle somewhat one-sided, 2-5 inches long; 



Fig. 14. Holy Grass, Vanilla Grass (Hierochloe borealis). Common in north- 

 western and northern Iowa in low grounds. Creeping "roots" something like 

 Quack Grass, but with the odor of vanilla. 



(Photographed by Colburn.) 



Fig. 14-A. Distribution of Holy Grass. 



