Puccinellia lemmonii

(Vasey) Scribn.
Common names: Lemmon's alkali grass
Treatment appears in FNA Volume 24. Treatment on page 469.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Plants perennial; cespitose, not mat-forming. Culms 5-40 cm, usually erect. Leaves basally concentrated; ligules 0.8-2.2 mm, obtuse to acute, mostly entire, sometimes slightly erose; blades involute, 1.2-1.9 mm wide when flattened. Panicles 2-18 cm, compact to diffuse at maturity, lower branches ascending to descending, usually spikelet-bearing to the base; pedicels scabrous, lacking tumid epidermal-cells. Spikelets 3.5-8 mm, with 2-6 florets. Glumes rounded over the back, veins obscure, apices acute to obtuse; lower glumes 0.7-1.5 mm; upper glumes 1.4-3 mm; calluses with a few hairs; lemmas 2.4-4 mm, herbaceous, mostly smooth, usually glabrous, sometimes with a few hairs near the base, principally along the veins, backs usually rounded, sometimes weakly keeled distally, 5-veined, veins obscure, midveins often slightly scabrous and prominent in the distal 1/2, often extending to the apical margins, lateral-veins not extending to the margins, apical margins ranging from smooth to scabrous, entire, not white, apices acute, entire; palea veins glabrous or shortly ciliate proximally, uniformly scabrous distally; anthers 1-2 mm. 2n = 14.

Distribution

Wash., Calif., Oreg., Mont., Wyo., Idaho, Nev.

Discussion

Puccinellia lemmonii grows in non-littoral saline environments in the western portion of the contiguous United States. Reports from Saskatchewan are probably based on depauperate specimens of P. nuttalliana.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Puccinellia lemmonii"
membranous +  and scarious +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
acute +  and obtuse +
Jerrold I. Davis +
(Vasey) Scribn. +
1 (?) +  and 3 (?) +
straight +
basal +  and terminal +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
not evident +
involute +, folded +  and flat +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
spikelike +
1 cm10 mm <br />0.01 m <br /> (?) +
pubescent +  and glabrous +
Lemmon's alkali grass +
not branching +
geniculate +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
not woody +
Wash. +, Calif. +, Oreg. +, Mont. +, Wyo. +, Idaho +  and Nev. +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
2 +  and 6 +
sterile +  and bisexual +
compressed +
reduced +
usually distinctly shorter +
subtending +
rounded +
subequal +  and unequal +
membranous +
uncinate +
less +  and 1/3 +
(3)5(7)-veined +
keeled +  and rounded +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
membranous +  and slightly or distinctly coriaceous +
erose +  and entire +
obtuse +  and acute +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
membranous +
inconspicuous +
lanceolate +
ascending +  and descending +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
concealed +  and prominent +
2 +  and 1 +
well-developed +
2-keeled +
subequal +
membranous +  and scarious +
spikelike +
2 cm20 mm <br />0.02 m <br /> (18 cm180 mm <br />0.18 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
dry +  and fleshy +
1 +  and 60 +
subterete +  and weakly laterally compressed +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Puccinellia lemmonii +
Puccinellia +
species +
membranous +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
plant +, not mat-forming +  and cespitose +
aquatic +  and terrestrial +