Festuca roemeri

(Pavlick) E.B. Alexeev
Common names: Oregon fescue Roemer's fescue
Endemic
Synonyms: Festuca idahoensis var. roemeri
Treatment appears in FNA Volume 24. Treatment on page 440.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Plants densely cespitose, without rhizomes. Culms (35) 50-90 (100) cm, erect, glabrous, smooth. Sheaths closed for less than 1/2 their length, glabrous, hirsute, or scabrous, persistent; collars glabrous; ligules 0.1-0.5 mm; blades 0.5-1 (1.2) mm in diameter, conduplicate, abaxial surfaces glabrous or puberulent, adaxial surfaces sometimes scabrous, glabrous or pubescent, veins (5) 7-9, ribs 5-9, well defined; abaxial sclerenchyma in 5-7 wide strands, sometimes confluent into a single band; adaxial sclerenchyma absent. Inflorescences (7) 8-20 (25) cm, loosely to densely contracted, with 1-2 branches per node; branches erect to slightly spreading, lower branches with 2+ spikelets. Spikelets 9-13.5 mm, with 4-6 florets. Glumes exceeded by the upper florets, ovatelanceolate, smooth or scabrous distally; lower glumes (2) 2.5-5 mm; upper glumes 4-6.2 mm; lemmas 5-7 (8.2) mm, scabrous near the apices, awns (2) 3-5 mm, terminal, usually more than 1/2 as long as the lemma bodies; paleas about as long as the lemmas, intercostal region scabrous or puberulent distally; anthers (2.6) 2.8-3.6 (4) mm; ovary apices glabrous. 2n = unknown.

Discussion

Festuca roemeri grows in grasslands and open forests, primarily west of the Cascade Mountains, from southeastern Vancouver Island southward to northwestern California.

Selected References

None.

Lower Taxa

None.

"wider than long" is not a number."decumbent" is not a number."longest" is not a number.

... more about "Festuca roemeri"
puberulent +  and glabrous +
membranous +  and scarious +
pubescent +, glabrous +  and scabrous +
2.6 cm26 mm <br />0.026 m <br /> (?) +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
awned +  and entire +
hispidulous +
Stephen J. Darbyshire +  and Leon E. Pavlickf +
(Pavlick) E.B. Alexeev +
1 (?) +  and 3 (?) +
2 cm20 mm <br />0.02 m <br /> (?) +
straight +
basal +  and terminal +
/2 +  and 1 +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
keeled +  and rounded +
swelling +
1.2 cm12 mm <br />0.012 m <br /> (?) +
not deciduous +  and deciduous +
not evident +
flat +, convolute +  and setaceous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
erect;slightly spreading +
spikelike +
pubescent +  and glabrous +
Oregon fescue +  and Roemer's fescue +
not branching +
50 cm500 mm <br />0.5 m <br /> (90 cm900 mm <br />0.9 m <br />) +
not woody +
Conn. +, N.J. +, N.Y. +, Wash. +, B.C. +, W.Va. +, Wis. +, Ala. +, Ariz. +, Calif. +, Colo. +, D.C +, Del. +, Ga. +, Pacific Islands (Hawaii) +, Iowa +, Idaho +, Ill. +, Ind. +, Ky. +, Md. +, Maine +, Mich. +, Minn. +, Mont. +, N.Dak. +, Nebr. +, N.Mex. +, Nev. +, Oreg. +, Pa. +, S.C. +, Vt. +, Alaska +, Mass. +, N.H. +, R.I. +, Fla. +, Wyo. +, Kans. +, Tex. +, La. +, Miss. +, Tenn. +, N.C. +, S.Dak. +, Utah +, Va. +, Ark. +, Okla. +, Alta. +, Greenland +, Man. +, N.B. +, Nfld. and Labr. +, N.S. +, N.W.T. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Ohio +  and Mo. +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
4 +  and 6 +
compressed +
reduced +
shorter or longer +
subtending +
ovatelanceolate +
unequal +  and subequal +
persisting +
uncinate +
8 cm80 mm <br />0.08 m <br /> (20 cm200 mm <br />0.2 m <br />) +
puberulent +  and scabrous +
1-7(9)-veined +
awned +  and entire +
bidentate +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
coriaceous +, chartaceous +  and membranous +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
membranous +
inconspicuous +
lanceolate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
concealed +  and prominent +
2 +  and 1 +
with hispidulous apices +  and glabrous +
well-developed +
2-keeled +
spikelike +
dry +  and fleshy +
glabrous +, pubescent +  and scabrous +
5 +  and 9 +
persistent +
scabrous +, hirsute +  and glabrous +
1 +  and 60 +
compressed +
0.9 cm9 mm <br />0.009 m <br /> (1.35 cm13.5 mm <br />0.0135 m <br />) +
1 (?) +  and 3 (?) +
simple +  and compound +
2 (?) +  and 3 (?) +
Festuca idahoensis var. roemeri +
Festuca roemeri +
Festuca sect. Festuca +
species +
membranous +
0.4 cm4 mm <br />0.004 m <br /> (0.62 cm6.2 mm <br />0.0062 m <br />) +
parallel +  and converging +
obscure +  and prominent +
7 +  and 9 +
stoloniferous +  and rhizomatous +
plant +  and cespitose +
aquatic +  and terrestrial +