CONTENTS 



Page 



Plants with apparently leafless, rounded stems, and open heads 3-6 



Hardstem Bulrush 4 



Softstem Bulrush 4 



Southern Bulrush 5 



Slender Bulrush 5 



Needlerush 6 



Soft Rush 6 



Plants with almost leafless, three-cornered or rounded stems, 



and tight heads 7-10 



Common Threesquare 8 



Olney Threesquare 8 



Torrey Threesquare 9 



Blunt Spikerush 9 



Bluntscale Bulrush 10 



Sharpscale Bulrush 10 



Plants with leafy, three-cornered stems, and heads with a 



few big spikelets 11-13 



Saltmarsh Bulrush 12 



Alkali Bulrush 12 



River Bulrush 13 



Plants with leafy, three-cornered stems, and heads with 



many small spikelets 14-15 



Black Bulrush 14 



Woolgrass 15 



Plants unlike those of the preceding groups and unlike 



each other 16-18 



Swamp Bulrush 16 



Seaside Bulrush 16 



Water Bulrush 17 



Alga Bulrush 17 



Tropical Bulrush 18 



Shore Cyperus 18 



