269 



Fig. 263. Pl.El7ROPOGONREFRACTTJM(A.Gray) Benth. in Vasey,U.S. Dept 

 Agr. .Spec. Kept. 63 : 40. 1883. {Lophochlsena rcjvacta, A. Gray, Proc. Am. Acad 

 8 : 409. 1872.) NODDING PLEUROPOGON.-A slender perennial 6-12 dm. 

 (20-4°) high, from creeping root-stocks, with flat leaves and terminal racemes 

 of 6 to 10 drooping spikelets. Sheaths smooth or scabrous; ligule obtuse, 3-6 

 mm. (li"-3") long; leaf-blades flat, the lower ones about 20 cm. (8') long, 6-8 

 mm. (3"-4") wide. Rachis very slender, flexuous. Spikelets {!) refracted by 

 the curving of the pedicels 2-3 cm. (I'-HO long, lodsely flowered; empty glumes 

 (2) unequal; flowering glumes (5) 7-8 mm. (3i'M") long, scabrous, truncate- 

 erose at the apex, bearing an awn about 6 mm. (3") long. Palea (4, 5) 7 mm. 

 (3i") long, the wings ending in blunt teeth.— In swamps and along mountain 

 streams, alt. 1,200-3,850 m. (3,6000-11,550°) . California to Washington. May to 

 August 



