66 



Fig 60 PANICTJM COLTJMBIANTJM Scribu. U. S. Dept. Agr. Div. Agios. 

 Bui 7 • 78 /?o 60 1897. AMERICAN PANIC-GRASS.-A slender, erect, finally 

 much-branched perennial with firm, short, lanceolate, ascending, acute 

 leaves and small-flowered, diffuse, oblong or subpyramidal panicles. Culms 

 nuberulenf sheaths and lower surface of the leaves clothed with a dense, 

 short, pubescence; leaf-blades 3-5 cm. (l'-2') long with cartilaginous and ser- 

 rulate margins. Spikelets («, 6, c) 1.5-1.8 mm. (r'-nearly 1'') long, broad y 

 obovate, obtuse, the three outer glumes densely pubescent. Branches hnallj 

 erect numerous, flower-bearing. P. psammophllum Xa.sh, Bui. Torr. Bot. Club, 

 26 576 1899 not Helw. is allied to and possibly identical with this species.- 

 Dry. sandy tields. New England southward to District of Columbia. June to 

 .\ugust. 



