196 



Fig. 178. Campulosus aromaticus (Walt.) Triii. (^Egilops 

 aromatica Walt.; Ctenium americanum Spreng.). Toothache- 

 gkass. All erect perennial 9 to 12 dm. high, from strong, lemon- 

 scented and pungent rootstocks, with narrow leaves and usually 

 a single, terminal, curved, pectinate spike 4 to 10 cm. long. 

 Southern Virginia to Florida and westward to Mississippi. July, 

 August. 



