DESCRIPTIVE MANUAL 



37 



Distribution. — Widely distributed in eastern North America, es- 

 pecially in meadows from Canada and New England, to New Jer- 

 sey, west to the Rocky mountains, Iowa to Missouri. 



Extermination. — The clustered root-stocks are easily destroyed 

 by exposing to the sun. Use the same methods as those given for 

 the Mexican drop-seed grass. 



Sheathed Rush Grass {Sporobolus vaginiflorus (Torr.) Wood.). 



Description. — A slender, caespitose annual, 1-3 ft. high, with 

 narrow, short leaves, and simple, few-flowered, terminal and axil- 

 lary, spikelike panicles which are about 1 in. long, and mostly en- 

 closed in the somewhat inflated leaf-sheaths ; spikelets 1-2 lines long. 



Fig. 20. Drop-seed or Rush Grass (Sporobolus vaginiflorus) . 

 fields, lawns and gravelly soil. 

 (Photographed by Hart.) 



Common in sandy 



