142 WEEDS OF THE FARM AND GARDEN 



blade being confined to the principal nerves ; panicle dif- 

 fuse, branches solitary, in pairs, or whorls ; spikelets very 

 small; blooming' period from July to October. Quite 

 common throughout the state and frequently becoming 

 a weed. Rather variable in appearance ; in cultivated 

 fields being stout and bristly, but in moist meadows and 

 old lake beds becoming slender and hairy rather than 

 bristly. 



Sprouting Crab Grass (Panicum dichotomiflorum, 

 Michx.). An annual with a thick, spreading or ascend- 

 ing, branching, glabrous stem, two to six feet high ; leaves 

 flat, seven to fourteen inches long; panicles diffuse, termi- 

 nal or lateral ; sheaths smooth, lax, somewhat flattened ; 

 spikelets rather crowded upon short, scabrous pedicels; 

 anthers saffron-yellow ; blooming time from July to Octo- 

 ber. Low waste grounds and cultivated fields from 

 Maine to Nebraska and southward. 



Barnyard Grass (Echinochloa crus-galli, (L.) Beauv.). 

 A coarse, ascending, leafy annual from one to five feet 

 high ; stems frequently branched near the base ; sheaths 

 loose and smooth as a rule, although occasionally appear- 

 ing rough ; leaves broad, flat and six inches or more long, 

 smooth or rough with rough margins ; spikelets densely 

 crowded in several rows along one side of the spikelike 

 branches of the panicle ; outer glume or bract from one- 

 fourth to one-half the length of the spikelets, second and 

 third glumes smooth and hairy or rough along the nerves, 

 third glume awnless or short pointed ; blooms all sum- 

 mer. Common throughout eastern United States except 

 in the extreme northern parts. 



Yellow Foxtail or Pigeon Grass (Setaria glauca, (L.) 

 Beauv.). An erect annual, one to two and one-half feet 

 high, with flat leaves and a bristly cylindrical spike, one 

 to three inches long; heads slender with tawny red bris- 

 tles, five to ten on each spikelet ; axis of the flowering 

 stalk densely pubescent ; blooms from June to September. 



