MANUAL OF THE GRASSES OF THE UNITED STATES 



339 



ing base, the decumbent portion root- 

 ing in wet soil, 20 to 50 cm. tall; 

 ligule as much as 6 mm. long; blades 

 flat, mostly 1 to 3 mm. wide; panicle 

 oblong, 5 to 15 cm. long, pale or pur- 

 ple, somewhat open, the branches or 

 some of them spikelet-bearing from 

 near the base; spikelets 2 to 2.5 mm. 

 long; glumes acute, glabrous except 

 the scabrous keel; lemma shorter than 

 the glumes, awnless or rarely awned 

 from the back; palea usually half to 

 two-thirds as long as the lemma. % 

 — Moist grassy places, Newfoundland 

 to Alaska, south to Virginia (adven- 

 tive in South Carolina) in the East 

 and to Washington in the West; 

 northern Europe. This species appears 

 to be native in northern North 

 America. 



6. Agrostis palustris Huds. Creep- 

 ing bent. (Fig. 465.) Differing from 

 A. stolonifera chiefly in the long 

 stolons, the narrow stiff appressed 

 blades, and the condensed (sometimes 

 somewhat open) panicle. % (A. 

 maritima Lam.) — Marshes along the 



interior of southern Canada and 

 northeastern United States to Vir- 

 ginia and Wisconsin, and occasion- 



Figure 464. — Agrostis stolonifera. Panicle, X 1 ; floret, 

 X 5. (Hitchcock 23899, Newfoundland.) 



coast, from Newfoundland to Vir- 

 ginia; British Columbia to northern 

 California; sometimes occupying ex- 

 tensive areas, as at Coos Bay, Oreg. ; 

 introduced at various places in the 



Figure 465. — Agrostis palustris. Plant, X 1; glumes 

 and floret, X 5. (Hitchcock 11713, Wash.) 



Figure 466. — Agrostis nigra. Plant, X 1 ; floret, X 5. 

 (Moore 47, cult. Mo. Bot. Gard.) 

 t 



ally southward, Texas to Arizona, 

 especially along ditches; Idaho and 

 Washington to Colorado and Cali- 

 fornia; Eurasia. Forms of this species, 

 known as seaside, Coos Bay, and 

 Cocoos bents (propagated by seed), 

 and Metropolitan and Washington 



