238 



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

 Herb. 1 : 270. 1893. Bigelow's Hlue-gkass. A slender, smooth 

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

 12 cm. long. Spikelets (a) 4 to 6 ram. long, 3- to 5-flowered, with 

 the acvitc empty glumes nearly as long 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 Texas, New Mexico, 

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



