78 



Fig. 60. Panicum columbianum Scribn. sp. nov. American 

 Panic-grass. A slender, erect, much- branched, pubescent or gla- 

 brous perennial, with short (usually 3 to 4 cm. long), lanceolate, 

 ascending, acute leaves, and small-flowered, diffuse, oblong or 

 subpyramidal panicles. Spike-lets about 2 mm. long. Branches 

 dually erect, numerous, flower-bearing. Dry, sandy fields, mead- 

 ows, and open woodlands, New England southward to the Caro- 

 linas, and westward to Tennessee and Alabama, mostly near the 

 coast; also in California. June-August. 



