6. Pe. interior Rydb. ———»Culns densely tufted, usually stiffly erect, 
30-60 cm. tell; sheaths smooth, not keeled; blades smooth or scaberulous, 
rather lax, 5-10 cm. long, 1-2 mn. vide; panicles narrow, 5~20 Cle, usually 
about 10 cme, long, the branches ascending or spreading, scarcely flemous; 
glumes acuminate, the first 2.5 tiie, the second 3 mine, long; lemnas lanceolate, 
3 ime long, villous on the keel and marginal nerves, cobweb sparse. 
1. 
u 
Lake Coeur d'Alene, Sandberg et al 545, 
Moist lake shoreSe 
te Pe Qlipina Le ——-» Culms densely tufted, 10-20 om. tall; sheaths smooth; 
ligules 1-3 mn. long; leaves mostly basal, the blades 1-4 on. long, 1-4 mm. 
wide; panicles dense, long-exserted, 2-4 cm. long, nearly as broad as long; 
spikelets 4-5 mn. long, 2-3 mm. wide, 5-6 flowered, the florets crowded; glumes 
ovate, arcuate, the first l-nerved, 2.5 mn. long, the second o-nerved, 3 mme 
long; lemmas broad, about 1 mm. from keel to margin, 5 mne long, densely long=| 
keel and marginal nerves, more or less villous on the internerves 
villous on the 
below; cobweb wanting. 
Stevens Peak, 5700 fte, Leiberg 1459. 
Grassy slopes at high elevations, 
Se Pe gracillima Vasey. Culnas erect from a loosely tufted, decumbent base, 
10-50 cmegusually 20-30 cm. tall; sheaths smooth; ligules 1-4 mn. long; blades 
firm or rather lax, very harrow or as much as 2 mn. wide, those of the culm 
very few and often much reduced; panicles long-exserted, triangular, 5-10 om. 
long, the branches in distant fascicles, 2-5 in a fascicle, spreading or even 
reflexed, naked below; glumes oblong-lanceolata, acute or usually obtuse, the 
first 3-4 mm., the second 4-5 mn., long; lemmas lanceolate, 4-5 i. long, 
crisp-pubescent on the lower portion of the back, the upper portion glabrous or 
‘scabrouse 
weadows, grassy hillsides, and rocky slopes and ledges. 
