MANUAL OF THE GRASSES OF THE UNITED STATES 



493 



Figure 722. — Leptochloa chloridiformis. Panicle, X 1 ; 

 floret, X 10. (Silveus 622, Tex.) 



(L. mucronata Kunth.) — Open or 

 shady ground, a common weed in 

 gardens and fields, Virginia to south- 

 ern Indiana and eastern Kansas, 

 south to Florida and Texas, west to 



southern California; Massachusetts; 

 throughout tropical America. Much 

 of the material from the Southwest 

 has shorter racemes. Smaller forms 

 occur throughout. These have been 

 called L. attenuata (Nutt.) Steud. 



6. Leptochloa viscida (Scribn.) 

 Beal. (Fig. 726.) Annual, freely 

 branching at base and from all the 

 nodes, spreading or prostrate, the 

 foliage and panicles somewhat viscid; 

 culms 10 to 30 cm. tall; blades flat; 

 panicles ovoid, rather dense, 1 to 8 

 cm. long, tinged with purple, included 

 at base; spikelets 3 to 5 mm. long, 

 5- to 7-flowered; lemmas pubescent 

 on the nerves, about 2 mm. long, 

 short-awned. O — Open ground 

 and waste places, New Mexico, Ari- 

 zona, and northern Mexico. 



7. Leptochloa fascicularis (Lam). 

 A. Gray. (Fig. 727.) Annual, some- 

 what succulent ; culms erect to spread- 

 ing or prostrate, freely branching, 30 

 to 100 cm. tall; blades flat to loosely 

 involute; panicles more or less in- 

 cluded, mostly 10 to 20 cm. long, 

 often smaller, occasionally longer, the 

 racemes several to numerous, as much 



