Puccinellia rupestris

(With.) Fernald & Weath.
Common names: Stiff saltmarsh grass
Treatment appears in FNA Volume 24. Treatment on page 463.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Plants annual or biennial; tufted, not mat-forming. Culms 5-50 cm, erect to decumbent. Ligules 1-2 mm, obtuse to truncate, entire; blades 2-6 cm wide, flat or folded. Panicles 2-10 cm, contracted at maturity, lower branches ascending, spikelet-bearing nearly to the base; pedicels scabrous, sometimes only slightly so, sometimes with tumid epidermal-cells. Spikelets 4-9 mm, with 2-6 florets. Glumes rounded to keeled over the back, midveins obscure or prominent, extending to the apices, often scabrous distally, lateral-veins obscure, apices acute to obtuse; lower glumes 1-2 mm; upper glumes 2-3.2 mm; calluses with a few hairs; lemmas 2.5-4 mm, somewhat coriaceous for most of their length, glabrous or sparsely hairy on the lower 1/2, particularly along the veins, backs rounded to keeled, 5-veined, midveins and sometimes all veins prominent, midveins extending to the margin, often excurrent, apical margins hyaline, smooth to densely scabrous, apices acute to obtuse, entire; palea veins shortly ciliate proximally, shortly ciliate to scabrous distally; anthers 0.8-1.2 mm. 2n = 42.

Discussion

Puccinellia rupestris grows in coastal and noncoastal habitats in Eurasia; North American collections were apparently introduced in ballast.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."coriaceous" is not a number.

... more about "Puccinellia rupestris"
membranous +  and scarious +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
acute +  and obtuse +
Jerrold I. Davis +
(With.) Fernald & Weath. +
1 (?) +  and 3 (?) +
straight +
basal +  and terminal +
rounded +  and keeled +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
not evident +
folded +  and flat +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
spikelike +
1 cm10 mm <br />0.01 m <br /> (?) +
pubescent +  and glabrous +
Stiff saltmarsh grass +
not branching +
erect +  and decumbent +
geniculate +
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
not woody +
N.Y. +, N.J. +, Pa. +  and Wash. +
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 +  and keeled +
subequal +  and unequal +
membranous +
uncinate +
less +  and 1/3 +
(3)5(7)-veined +
hairy +  and glabrous +
keeled +  and rounded +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
membranous +  and slightly or distinctly coriaceous +
erose +  and entire +
obtuse to truncate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
membranous +
inconspicuous +
lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
prominent +  and obscure +
concealed +  and prominent +
2 +  and 1 +
well-developed +
2-keeled +
subequal +
membranous +  and scarious +
spikelike +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 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 +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Puccinellia rupestris +
Puccinellia +
species +
membranous +
0.2 cm2 mm <br />0.002 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
biennial +  and annual +
plant +  and not mat-forming +
aquatic +  and terrestrial +