WEED MIGRATION 73 



MuHLENBERGiA MEXicANA, Mexican drop-seed. 



M. RACEMOSA, Marsh muhlenberg. 



M. ScHEEBEBi, Nimble "Will. 



Spokobolus vaginiflokus. Sheathed rush grass. 



S. NEGOiCTUS, Small rush grass. 



Alopecueus pratensis, Meadow foxtail. 



A. GENicuLATTJS, Marsh foxtail. 

 PMeum pratense, Timothy. 

 Ageostis ai/BA, Red top. 

 AvENA fatua, "Wild oats. 

 EiiEusiNE iNDiCA, Wire grass. 

 Ebagrostis pilosa,' Southern spear grass. 



E. MEGASTACHTA, Candy grass. 

 Dactylis glomerata, Orchard grass. 

 Poa annua, Low spear grass. 



P. pratensis, Kentucky blue grass. 



P. trwialis, Rough-stalked meadow grass. 



P. cOMPRESSAj "Wire grass. 



Beomus secalinus. Chess. 



B. hoedeaceus. Soft chess. 



B. AEVENsis, Field brome grass. 

 B. TECTORUM, Downy brome grass. 

 Festuca pratensis. Meadow fescue. 



F. ovina. Sheep's fescue. 

 Lolmm peremne, Common darnel. 

 L. TEMUiiENTUM, Poison damel. 

 Agropteon eepens. Quack grass. 

 A. ca/ninum, Awned wheat grass. 

 A. Smithh, "Western wheat grass. 

 HoRDEUM jDBATUM, Squircl-tail grass. 

 H. PusiLLUM, Little barley. 



Gyperaceae. 



Ctpeeus escuuentuSj Nut grass. 



Juncaceae. 

 JuNCUS TENUIS, Slender rush. 



Liliaceae, 

 Allium vineale, "Wild garlic. 



Vrticaceae. 

 Cannabis sativa. Hemp. 

 Uetica gracilis. Nettle. 



