947 
10. Be brizaeformis Fisch. and iiey. Quaking Bromegrass, Rattlesnake-grass. ; 
w Plants annual; culms 50-60 cm. tall, the nodes pubescent; sheaths softly pilosee> =] F 
pubescent with spreading hairs; blades pilose-pubescent, about 10 ecm. long, a 
4 mme wide; panicles nodding, 10 cm. long, the branches slender, flexuous, 
bearing a single spikelets; spikelets many-flowered, 25 mm. long, 10 mms wide; 
glumes obtuse, the first 3-5 nerved, 6 mm. long, the second 7+9 nerved, 8 mme 
long; lemmas very broad inflated, boat-shaped at the obtuse apex, smooth, the 
margins inrolled at the base, avmless. 
Fields and waste places; introduced from Europee Coeur d'Alene; Ide 
Smet Mission,Y Leiberg 1006; Viola; Thatuna Hillse 
- 
ll. B. Reomdoacous L. Soft Cheat. ——~> Plants annual; culms erect, 20-50 
cme tall; sheaths densely retrorsely pilose; blades pubescent or pilose, 5-10 
cme long, 2-5 mme wide; panicles dense, contracted, 5-10 cm. long; spikelets 
short-pediceled, several flowered, about 15 mm. long; glumes acute, pilose, 
the first rather narrow, 3-nerved, 5 mm. long, the second broad, S=nerved, about; 
6 mne long; lemmas obtuse, densely pilose, awned from just below the teeth of 
the bifid apex, the awn about as long as the lemma. 
Fields and waste places; introduced from Zurope,. Coeur d'Alene; Thatuna 
Hillis, 
12. Be secalinus L. Chess, Cheat. Plants annual; culms erect or more or less 
decumbent at tho base, 30-80 cm. tall; sheaths glabrous, overlapping at least 
below; blades usually pilose on both surfaces, about 10 om. long, 4 mm. wide; 
panicles open, the branches in whorls, rether stiffly ascending; spikelets 
chartaceous, glabrous; first glume rather narrow, acute, d-nerved, 4-5 mm. long, 
the second broad, obtuse, 5-7 nerved, about 6 mm. long; lemmas broad, the nerves 
inconspicuous, the margins inrolled below, awned fron the back just below the 
usually bifid apex, the awns shorter than the lemmas. sometimes wanting. 
Fields and waste places; introduced from Burope. Cultivated for hay 
in “Jashington and Oregon. Lake Coeur d'Alene; Coeur d'Alene; near Post Falls; 
Fox Cr,, Kaniksu Nat. ‘or. 
‘ 
15. Be. commutatus Schrads ~——— Similar to B. secalinus; sheaths pubescent; 
panicles narrower, the branches shorter, less Spreading; glumes and lemmas 
papery, glabrous or scabrous, the nerves rather prominent, the margins hyaline, 
not inrolled below or only slightly so, the rachilla not visible. j 
Yields and waste places; introduced from surope, Benton Ur, wasershed, 
2500 fte; Harrison. 
w 
ee ane 
