WOOTON AND STANDLEY—FLORA OF NEW MEXICO, 89 
broad at the base, subcoriaceous, obscurely many-nerved, unequally divided into 9 
to 23 awnlike lobes; palea rather broad, 2-keeled near the margins. 
1. Pappophorum wrightii 8. Wats. Proc. Amer. Acad. 18: 178. 1883. 
Type Loca.ity: Western Texas or southern New Mexico. 
RanGE: Western Texas and southern Arizona and southward. 
New Mexico: Bear Mountain; Kingston; Cerrillos; Socorro; Dog Spring; Las 
Cruces; Organ Mountains; Carrizozo, Dry hills, in the Lower and Upper Sonoran 
zones. 
52. SCLEROPOGON Phil. Fase NEEDLE GRASS. 
Perennial, cespitose, often stoloniferous grasses with nearly simple panicles; spike- 
lets unisexual, the two kinds unlike, 2 to many-flowered; staminate spikelets many- 
flowered, the glumes narrow, acute, 3-nerved, awnless, unequal, the lemmas some- 
times minutely 3-toothed at the apex, the palea narrow and rigid; stamens 3; pistillate 
spikelets 1 to many-flowered, the glumes persistent, very unequal, the lemmas rigid, 
narrow, the 3 nerves produced into very long slender divergent twisted awns; styles 
distinct, elongated; grain free, narrow, elongated. 
1. Scleropogon brevifolius Phil. Anal. Univ. Chile 34: 205. 1870. 
TypE Loca.ity: Chile. 
RanGeE: Arizona and western Texas to Mexico and South America. 
New Mexico: Carrizo Mountains; Hillsboro; Albuquerque; Socorro; Tucumcari; 
Dona Ana Mountains; Organ Mountains; Deming; Carrizozo; White Mountains; Pecos 
Valley. Dry hills and plains, in the Lower and Upper Sonoran zones. 
Very common on the mesas of southern New Mexico and of considerable importance 
as a range grass. 
53. PHRAGMITES Trin. Carrizo. 
Tall reedlike perennial with stout leafy culms and large terminal panicles; spike- 
lets loosely 3 to 7-flowered; rachilla jointed above the glumes and between the florets, 
clothed with long silky hairs; lowest floret staminate or neutral, the others fertile; 
glumes unequal, lanceolate, acute, shorter than the florets; lemmas glabrous, very 
narrow, acuminate; grain free. 
1. Phragmites phragmites (L.) Karst. Deutsch. Fl. 379. 1880-3. 
Arundo phragmites L. Sp. Pl. 81. 1753. 
Phragmites communis Trin. Fund. Agrost. 134. 1820. 
Tyre Locauity: “Habitat in Europae lacubus fluviis.”’ 
Rance: Nearly throughout the United States and in Mexico; also in Europe and 
Asia. 
New Mexico: Farmington; Cimarron; Canada Alamosa; Copper Mines; Mimbres 
River; Mesilla Valley; Round Mountain; Roswell. In wet ground, especially in 
river valleys, in the Lower and Upper Sonoran zones. 
54. ARUNDO L. 
Tall (2 to 3 meters or more) perennial with flat leaves and ample terminal panicles; 
spikelets 2 to many-flowered; rachilla jointed above the glumes and between the 
florets, smooth; florets crowded, fertile, or the upper or lower staminate; glumes 2, 
narrow, subequal, 3-nerved, smooth, acute or acuminate, about the length of the spike- 
let; lemmas membranaceous, 3-nerved, 2-toothed at the apex, mucronate between 
the teeth, long-pilose on the back; palea hyaline, 2-keeled; grain smooth, free. 
1. Arundo donax L. Sp. Pl. 81. 1753. GIANT REED, 
Type Locatity: “Habitat in Hispania, Galloprovincia.’’ 
Rance: Western Texas and southern New Mexico to Mexico, probably naturalized; 
also in the Old World. 
