Annuals or perennials with dense cylindrical spikes. Spikelets l©& se 
flowered, 4 coca at each node of the articulatedrachis, the group 
1f Hordeum L. Wild Barley. 
the lateral pediceled; rachilla of 
falling entir the middle one sessile, 
sad behind the palea, bearing a rudimentary 
not 
pot 
aa 
the central et prolonge 
floret; lateral spikelets reduced 
spikelet; lemmas rounded on the ba 
; glumes subulate, standing in front of the 
obscurely nerved, tapering into the 
avVNS e« 
le He @ussoneanun 
o Plants annual, 
O Plants perennial,/ 
é 
5 Awns 4-6 cme long, Ss spreading 2. He jubatum 
toed 
5 Awns less than 1 om. long, straight 3. He. nodosum 
——>Culns tufted, ascending or spreading, more 
r less geniculate at the nodes, 10- 30 cme tall; sheaths pubescent or glabrous; 
plades narrow, lax, pubescent, 1-5 cme long, seldom longer; spikes ovoid, 
mostly 2-35 cm. long; spikelets crowded; glumes subulate, nerveless, thickened 
toward the base, scabrous, about 1 cme long, including the awn; lemmas of 
central spikelets 5 mm. long, the avms stiffly ascending, somewhat exceeding 
shose of the glumes. . 
. jatroduced fran ee ek eee 
Waste places; 
le ie @ussoneanun Parl. 
O 1 
—— Coeur d'Alene, Rust 459. 
2 Squirreltail Grass. ——>Culns slender, tufted, erect, 
or spreading at the base, 40 om. tall, sanetimes taller; sheaths glabrous, 
scabrous or pubescent; leaves flat, firm, stiffly ascending, 5-10 cme long, 
2-4. mm. wide, scabrous; spikes nodding and flexuous, readily disarticulating 
10 cme long; lateral spikelets rodioed. to awns; Piuwss of the central spikelet 
awnlike, very scabrous, 4-6 cm. long; lemmas 5-8 mm. long, the awns slender, 
as long as those of she glumes, ascending or spreading. 
2. He jubatum L. 
— 
Fields and waste placese—— 
— Coeur d'Alene, ast oOB g Viola, Soenacarmeated 
3. He nodosum Le Culas tufted, erect, 30-60 om. tall; lower sheaths pubescent, 
the upper ones glabrous or scabrous; leaves rather thin, scabrous, ascending, 
4-10 cm. long, 2-5 mm. wide, sometimes narrower and elongate, especially on the 
innovations; apie srect, S-5 cme long; florets of the lateral spikelets 
stipitate, much reduced, acuminate or Se ee clumes setiform, scabrous, 
about 1 cme long; lemmas of the central spikelets acuminate, scabrous, 6 mm. 
long, the awns a littlolonger than the glumes. 
= ae seer: des a ues 
mMOLSEG meadows and nilis 
ela Pand Orei i) 2 cad bance: Pa es io 
——5 Lake Pond Oreills, seadborgyHeltes-emtterpoupet-9o8; Wallace, 2728-4000 
DP. nee -—-—> e T To 7 as 
ive ‘ > {/LOLa . r me 
“I 
' 
# 
+ 
{ 
4 
4 
4 
q 
H 
4 
% 
i 
