Elymus canadensis var. canadensis

Endemic
Synonyms: Elymus canadensis var. hirsutus Elymus canadensis var. glaucifolius Glaucifolius
Treatment appears in FNA Volume 24. Treatment on page 305.

Spikes (6) 10-25 (30) cm, nodding to almost pendent, often strongly glaucous, often with 3 spikelets per node; internodes 4-7 mm. Glumes not clearly indurate or bowed out at the base, awns 10-25 mm; lemmas villous or hispid, awns 15-40 mm, moderately to strongly outcurving.

Discussion

Elymus canadensis var. canadensis is widespread across the northern range of the species, where anthesis is from late June to August, but it is also frequent as far south as Arizona, New Mexico, and Oklahoma. Tentatively included here are E. canadensis var. glaucifolius (Muhl.) Torr., which is strongly glaucous, with scabrous blades and hirsute or scabrous lemmas, and E. canadensis var. villosus Bates, which has villous leaves and occurs rarely in the northern Great Plains.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

membranous +  and scarious +
rarely sparsely hispid +  and villous +
with hairs +  and scabrous +
scabridulous +  and smooth +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
bidentate +  and acute +
purplish black +  and brown +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Mary E. Barkworth +, Julian J.N. Campbell +  and Bjorn Salomon +
1 (?) +  and 3 (?) +
10 cm100 mm <br />0.1 m <br /> (?) +  and 5 cm50 mm <br />0.05 m <br /> (?) +
straight +
outcurving +
basal +  and apical +
from the sinus +  and terminal +
not geniculate +
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
grayish +  and green +
not evident +
cross +, linear +  and narrowly lanceolate +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
spikelike +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
hairy +  and glabrous +
not branching +
sometimes strongly decumbent +  and prostrate +
decumbent +  and erect +
60 cm600 mm <br />0.6 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
not woody +
Conn. +, N.J. +, N.Y. +, Wash. +, Del. +, D.C. +, Wis. +, W.Va. +, Wyo. +, N.H. +, N.Mex. +, Tex. +, N.C. +, Tenn. +, Pa. +, Alta. +, B.C. +, Man. +, N.B. +, N.W.T. +, Ont. +, Que. +, Sask. +, R.I. +, Nev. +, Va. +, Colo. +, Calif. +, Kans. +, N.Dak. +, Nebr. +, Okla. +, S.Dak. +, Ark. +, Vt. +, Ill. +, Ind. +, Iowa +, Ariz. +, Idaho +, Maine +, Md. +, Mass. +, Ohio +, Utah +, Mo. +, Minn. +, Mich. +, Mont. +, S.C. +, Ky. +  and Oreg. +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
3 +  and 5 +
laterally compressed +  and terete +
(0)1-7-veined +
shorter than to longer than the adjacent florets +
subtending +
subequal +
1.1 cm11 mm <br />0.011 m <br /> (4 cm40 mm <br />0.04 m <br />) +
uncinate +
solid +  and hollow +
1.5 cm15 mm <br />0.015 m <br /> (?) +
5mm +  and 10mm +
with a few hairs +  and glabrous +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.035 cm0.35 mm <br />3.5e-4 m <br />) +
ciliate +  and scabrous +
distributed +
hispid +  and villous +
linear-lanceolate +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
stiffly membranous +  and coriaceous +
erose +  and entire +
acute +, rounded +  and truncate +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
membranous +
inconspicuous +
lanceolate +
fleshy +  and membranous +
1 +, 0 +  and 5 +
2 +  and 1 +
hairy +  and glabrous +
well-developed +
slightly longer +
bidentate +  and acute +
subequal +
0.7 cm7 mm <br />0.007 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
dry +  and fleshy +
spikelike +
hirsute +  and glabrous +
scabridulous +  and smooth +
6 cm60 mm <br />0.06 m <br /> (?) +
6 cm60 mm <br />0.06 m <br /> (?) +  and 30 cm300 mm <br />0.3 m <br /> (?) +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
subsessile +  and sessile +
bisexual +  and sterile +
terete +  and compressed +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
not papillate +
Elymus canadensis var. hirsutus +, Elymus canadensis var. glaucifolius +  and Glaucifolius +
Elymus canadensis var. canadensis +
Elymus canadensis +
variety +
membranous +
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
inconspicuous +
unequal +
stoloniferous +  and rhizomatous +
plant +  and cespitose +
aquatic +  and terrestrial +