Zizania aquatica L. (Z. palustris of the 1919 "Flora of the 



District of Columbia.") Annual wildrice. 



Margin of Anacostia River, in tidewater mud. 



CYPERACEAE 



Bulbostylis capillaris (L.) C. B. Clarke 

 Frequent in disturbed sandy soil. 



Carex amphibola var. turgida Fern. 



(C. grisea of most authors, not Wahlenb.) Sedge. 



Rich woods. 



Carex annectens Bickn. 

 Frequent in fields. 



Carex artitecta Mackenz. 

 Occasional in woods. 



Carex blanda Dewey 



Thin woods and open fields. 



Carex bushii Mackenz. 

 Occasional in fields. 



Carex cephalophora Muhl. 

 Wooded banks of streams. 



Carex complanata Torr. & Hook. 

 Meadows and thin woods. 



Carex crinita Lam. 

 Wet soil. 



Carex digitalis Willd. 

 Occasional in woods. 



Carex emmonsii Dewey 

 Dry hillsides. 



Carex laevivaginata (Kukenth.) Mackenz. 

 Common in wet soil. 



Carex laxiculmis Schwein. 

 Wooded hillsides. 



Carex lupulina Muhl. 

 Wet soil. 



Carex lurida Wahlenb. 

 Common in wet places. 



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