CYPERACEAE (SEDGE FAMILY) 



71 



Means of control 



Drainage of the ground, followed by clean, late-continued hoe- 

 cultivation which will prevent seed production and gradually starve 

 the underground growth. Hogs may be of assistance in the be- 

 ginning in cleansing a badly infested plot. 



STRAW-COLORED CYPERUS 

 Cyperus strigdsus, L. 



Native. Perennial. Propagates by seeds and by tubers. 

 Time of bloom: July to Sep- 



tember. 

 Seed-time: August to Octo- 



ber. 

 Range: Maine to Ontario, 



Minnesota, and Nebraska, 



southward to Florida and 



Texas. 

 Habitat : Damp meadows, 



swamps, and along streams. 



This plant is very variable, 

 having dwarf varieties and 

 others with globose heads ; but 

 in any form it is a weed, al- 

 most worthless as forage, even 

 when young. Ordinarily it 

 grows one to three feet tall, 

 the three-sided culms rather 

 stout, tufted, rising from a 

 cluster of hard, corm-like 

 tubers. Leaves flat and soft, 

 rough-edged, about a quarter- 

 inch wide and equaling the 

 stem in length ; those forming 

 the involucre are much longer 

 than the rays of the umbel, 

 which are simple or com- 

 pound, their sheaths terminat- 

 ing in two bristles; spikelets 



. -Straw-colored Cyperus (Cy 

 penis strigosus). xi. 



