Fig. 534. Poa bigelovii Yasey & Scribn. Contrib. U. S. Nat. 

 Herb. 1 : 270. 1893. Bigelows Blue-grass.— A slender, smooth 

 annual 1 to 6 dm. high, with flat leaves and narrow panicles 4 to 

 12 cm. long. Spikelets (a) 4 to 6 mm. long, 3- to o-flowered. with 

 the acute empty glumes nearly as loug as the flowering ones, 

 which are 3 to 4 mm. long, and villous on the keel and on the 

 lower half of the marginal nerves, with long, cobwebby hairs at 

 the base. — Moist soil. Colorado southward to Texa-. New Mexico. 

 Arizona, and California. [Mexico.] April-July. 



