298 



Fig. Sill. Agropyron spicatum (Pursh) Scribn. A: Smith, Bull. 

 U. 8. Dopt. Agi-., Div. Agros. 3 : 12. IXdd. Colokado Uluk-stem. 

 Wejsteun Wheat-grass. — A rigid, upright, glaucous perennial 3 

 to 12 (lui. high, from creeping rootstocks, with rather lirm, bhiisli- 

 green leaves, and straight, beardless spikes 6 to 14 oni. long. 

 Spikelets 7- to 13-Howered, 12 to 20 mm. long, with lanceolate, 

 acuminatcvpoiuted, empty glumes («), and acute flowering glumes 

 8 to 12 mm. long. — Dry or moist soil, Wisconsin to Iowa, and 

 westward to Washington, Texas, and Arizona. June-September. 



