55 



Fig. 37. Panicum lineare Krock (Panicum glabrum Gaud.; 

 Syntherisma linearis Nash). Smooth Crab-grass. A slender, 

 glabrous annual 1.5 to 3.5 drn. high, with culms which are much 

 branched below, Hat leaves, and 2 to (5 slender diverging spikes. 

 Naturalized in waste and cultivated land; Nova Scotia to Ontario 

 and South Dakota, south to Florida and Texas. [Europe.] Augnst- 

 October. 



