Muhlenbergia eludens

C. Reeder
Common names: Gravelbar muhly
Treatment appears in FNA Volume 25. Treatment on page 198.

Plants annual. Culms 10-40 cm, erect; internodes mostly glabrous, strigulose below the nodes. Sheaths usually longer than the internodes, scabridulous or puberulent, keeled; ligules 1.5-2.5 mm, membranous, acute, erose; blades (1) 2-5.5 (8) cm long, 0.8-2 mm wide, usually involute, occasionally flat, scabridulous abaxially, villous adaxially. Panicles 14-24 cm long, 3-7 cm wide, narrowly pyramidal, open; primary branches 2-7 cm, ascending, diverging less than 40° from the rachises; pedicels 1-2 (3) mm, usually shorter than the florets, appressed; disarticulation above the glumes. Spikelets 1.7-3 mm. Glumes subequal, 1.3-1.8 mm, sparsely hirsute, 1-veined; lower glumes 1.3-1.6 mm, acuminate, sometimes awned, awns to 0.5 mm; upper glumes 1.4-1.8 mm, wider than the lower glumes, acuminate; lemmas (1.7) 1.9-2.5 mm, lanceolate, purplish or yellowish to light brownish, appressed-pubescent on the midveins and margins, hairs to 0.5 mm, apices awned, awns 1.2-3.5 mm, delicate; paleas 1.8-2.4 mm, oblongelliptic, glabrous; anthers 0.4-0.6 mm, purplish. Caryopses 1.3-2.3 mm, fusiform to dorsally compressed, light brownish. 2n = 40.

Discussion

Muhlenbergia eludens grows in open sandy gullies, washes, rocky slopes, and roadsides. It is found at elevations of 1700-2450 m in the southwestern United States and northwestern Mexico.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Muhlenbergia eludens"
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
Mucronate (?) +, Awned (?) +, Truncate (?) +  and Acuminate (?) +
Paul M. Peterson +
C. Reeder +
1 (?) +  and 3 (?) +
sinuous +, flexuous +  and straight +
multiple +, , +  and single +
curled +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
2 cm20 mm <br />0.02 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
scabridulous +
involute +, folded +  and flat +
0.8mm;2mm +
spikelike +
with hairs +  and glabrous +
light brownish +
fusiform +  and dorsally compressed +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
triangular +  and dome--shaped +
sometimes longer +
membranous +
Gravelbar muhly +
geniculate +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
Ariz. +, N.Mex. +  and Tex. +
not waisted +
capillary +
pistillate +  and staminate +
bisexual +  and fertile +
round +  and compressed +
reduced +
shorter or longer +
subtending +
subequal +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
uncinate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
paniculate +  and racemose +
hollow +  and solid +
strigulose +  and glabrous +
not absent +
yellowish +  and light brownish +
appressed-pubescent +
lanceolate +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
membranous +
inconspicuous +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
concealed +  and prominent +
2 +  and 1 +
oblongelliptic +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
14cm +  and 24cm +
cleistogamous +
pyramidal +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
3 cm30 mm <br />0.03 m <br /> (?) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
dry +  and fleshy +
diverging;ascending +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
spikelike +
usually longer +
scabridulous +
1 +  and 60 +
compressed +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Gramineae +
Muhlenbergia eludens +
Muhlenbergia +
species +
membranous +
shorter than to longer than the florets +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
7 +  and 13 +
stoloniferous +  and rhizomatous +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +