/q. leaves in a basal cluster, the 
blades mostly less than 1 mm. wide 
q / 2 . culns Slender mostly less than 30 VN oe 
\ome tall 9. P. Sandberei¢ 
/4¢ Leaves scattered, the blades as much as 
/B ¢ 5 mn. wide; culms stouter, more than 
\50 CMe tall 10% P. Canbyi 
/O Lemmas glabrous or scabrous 
|% Culms stout, as much as 120 om. tall; 
/@ Panicles ample, as much as 30 on. long ll. P. ampla 
/~,Culms slender, less than 50 om. tall; ; 
/( panicles less than 10 om. long ; 
; 
7 
/4 Panicles ovoid, dense; blades as much 
/3as 2 ma. wide, smooth 12. P. epilis 
/4 Panicles open, or if dense, not ovoid; 
I®bdlades very narrow, scabrous 13. P. Cusickii 
lL. Pe annua L. Annual Bluegrass. —»>Culms tufted, erect or Spreading, 
often weak and lax, 10-30 cm. tall; plants smooth throughout; blades mostly 
Wd é-5 cme long, 2-5 mm. wide; ligules obtuse, 2-3 mn. long; panicles 2-5 om. 3 
long, the branches stiffly ascending, spreading, or sometimes reflexed, naked j 
below; first glume lanceolate, l-nerved, 2 mm. long, the second ovate or ovate =| ‘ 
lanceolate, often acute, S-nerved, 2.5 mm. long; lemmas obtuse, the lower 3 mm. 
long, the intermediate nerves prominent, the keel and lateral nerves pubescent ‘ 
below; cobweb wanting. 
Moist ground, woods, and waste places. <a 
no ——?Between Burke and Upper Glidden Lake, 4000-5900 ft. Chese—Sodie:Beskey 
Eee AmaENBAMANNEP od 
ge Pe compressa L. Canada Bluesrass. —sCulms erect fran a decumbent base 
with creeping rhizomes, 20-40 cm. call; sheaths keeled, smooth or obscurely 
scabrous; blades firm, erect or ascending, smooth or scaberulous, 3-8 om. long, 
1-5 mae wide; panicles narrow, rather dense, 3-8 om. long, the short branches 
appressed or stiffly spreading; spikelets on short pedicels, crowded and usually 
appressed along the branches; glumes straight or usually arcuate, o-nerved, the 
first lanceolate, 2 mn. long, the second ovate or ovate-lanceolate, 2.5 mm. long; 
lemmas tinged with bronze and purple at the summit, 2.5 mm. long, the intermediate 
nerves obscure, the keel and marginal nerves Sparsely pubescent below, the cobweb 
scant. 
Dry or wet hillsides and lake shores-— a 
eo: ——~» Lake Pend es Lake Coeur d'Alene, Sandberg 53; 
fhatuna Hills, — a 
+ 
