CYPERACEAE (SEDGE FAMILY) 71 
° 
Means of control 
Draindge 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 strigosus, 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- ye, 36,—Straw-colored Cyperus (Cy- 
ing in two bristles; spikelets perus strigosus). X i. 
