Leymus simplex var. luxurians

(Scribn. & T.A. Williams) Beetle
Treatment appears in FNA Volume 24. Treatment on page 359.
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Illustrator: Cindy Roché

Copyright: Utah State University

Culms 55-75 cm tall, 2-2.5 mm thick. Spikes 10-27 cm long; internodes 10-20 mm. Spikelets 20-25 mm, with 6-12 florets.

Discussion

Leymus simplex var. luxurians grows at a few locations in Wyoming. It sometimes grows close to var. simplex. It may represent clones that have access to more water and/or more nutrients, but the absence of intermediate plants suggests a genetic distinction.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."/2-33/4timesthelengthof" is not declared as a valid unit of measurement for this property.

membranous +  and scarious +
0.37 cm3.7 mm <br />0.0037 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0-3(7)-veined +
straight +
midlength +
hairy +, glabrous +  and pilose +
acute +, tapering +, acuminate +  and keeled +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0 cm0 mm <br />0 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Mary E. Barkworth +
(Scribn. & T.A. Williams) Beetle +
0-3(7)-veined +
1 (?) +  and 3 (?) +
12 cm120 mm <br />0.12 m <br /> (?) +
straight +
midlength +
glabrous +  and pilose +
tapering +, acuminate +, acute +  and keeled +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
4 cm40 mm <br />0.04 m <br /> (29 cm290 mm <br />0.29 m <br />) +
not evident +
cross +, linear +  and narrowly lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
spikelike +
hairy +  and glabrous +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
not branching +
55 cm550 mm <br />0.55 m <br /> (75 cm750 mm <br />0.75 m <br />) +
pubescent +  and glabrous +
10 cm100 mm <br />0.1 m <br /> (350 cm3,500 mm <br />3.5 m <br />) +
not woody +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Colo. +, Utah +, Wyo. +, Calif. +, Nev. +, Ariz. +  and Oreg. +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
6 +  and 12 +
laterally compressed +  and terete +
shorter than to longer than the adjacent florets +
1/4 +, 8mm +  and 12mm +
subtending +
tapering +  and subulate +
subequal +
0.5mm +  and 1.5mm +
uncinate +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
solid +  and hollow +
15 cm150 mm <br />0.15 m <br /> (?) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0-3(7)-veined +
glabrous +  and pilose +
tapering +, acuminate +, acute +  and keeled +
distributed +
keeled +  and rounded +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
stiffly membranous +  and coriaceous +
truncate +  and rounded +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
membranous +
inconspicuous +
fleshy +  and membranous +
concealed +  and prominent +
2 +  and 1 +
hairy +  and glabrous +
well-developed +
slightly shorter than to slightly longer than the lemmas +
slightly longer +
subequal +
5 cm50 mm <br />0.05 m <br /> (?) +
appressed +  and ascending +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
dry +  and fleshy +
spikelike +
10 cm100 mm <br />0.1 m <br /> (?) +  and 27 cm270 mm <br />0.27 m <br /> (?) +
bisexual +  and sterile +
terete +  and compressed +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
strigillose +  and glabrous +
not papillate +
Elymus simplex var. luxurians +  and Elymus simplex +
Leymus simplex var. luxurians +
Leymus simplex +
variety +
awnlike +
membranous +
0-3(7)-veined +
midlength +
inconspicuous +
glabrous +  and pilose +
7 (?) +  and 11 (?) +
tapering +, acuminate +, acute +  and keeled +
subequal +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
plant +  and not cespitose +
aquatic +  and terrestrial +