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Fig. 541. Poa tracyi Vasey, Bull. Torr. Bot. Club, 15 : 49. 1888. 

 Tracy's Blue-grass. — A rather stout, erect perennial 5 to 10 dm. 

 high, with flat leaves and open panicles 15 to 25 cm. long. Spike- 

 lets clustered near the ends of the branches, 3- to 4-flowered, 

 about 5 mm. long, with obtuse glumes, the floral ones nearly 4 mm. 

 long and white pubescent on the back below, ciliate-hairy on the 

 marginal nerves and keel. — Moist soil, Colorado and New Mexico. 

 June-August. 



