No. 11. 
ORYZOPSIS FIMBRIATA Hemsl. (Stipa fimbriata Kth.) 
Culms tufted with many root leaves at base, erect, striate, smooth, slender, 1 to 
2 feet tall. 
Leaves of stem 2 to 4; lower sheaths much shorter than internodes, closely 
wrapping the culm with the membranaceous inner fold; blade filiform, involute, 
+ line wide, 1 to 3 inches long, much exceeded by the involute setaceous root leaves; 
ligule conspicuous, obtuse, wider than blade, 1 line long. 
Inflorescence a loose, erect, or spreading panicle, 4 to 6 inches long; rachis angu- 
lar, slightly scabrous, flexuous toward apex, branches in twos or threes, spreading 
or lower ones even deflexed, filiform, 1 to 2 inches long, each bearing 2 to 4 spike- 
lets on pedicels 3 to 5 lines long. 
Spikelets obovate, 2 to 24 lines long; first glume broadly lanceolate, upper 
half scarious with acuminate apex, often purplish, 5-nerved, smooth, 2 to 2} lines 
long; second glume same but slightly smaller; floral glume coriaceous, orbicular, 
obscurely 5-nerved, covered with loose white hairs longer at base, and bearing a 
smooth flexuous awn 5 to 8 lines long; palet obovate, acuminate, 2-nerved, 14 lines 
long. 
PLATE XT; a, spikelet dissected and enlarged; b, panicle at maturity. 
Texas, New Mexico, and Arizona, 
