Hordeum jubatum subsp. jubatum

Common names: Foxtail barley Squirreltail barley Squirreltail grass Orge agréable Queue d'écureuil Orge queue d'écureuil
Treatment appears in FNA Volume 24. Treatment on page 245.

Central spikelets: glumes 35-85 mm, strongly spreading at maturity; lemmas awned, awns 35-90 mm.

Discussion

Hordeum jubatum subsp. jubatum is the more widespread of the two subspecies, extending from eastern Siberia through most of North America to northern Mexico. Native in western and northern portions of the Flora region, it is considered to be adventive in the eastern and southeastern portion of its range. It grows in moist soil along roadsides and other disturbed areas, as well as in meadows, the edges of sloughs and salt marshes, and on grassy slopes.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

membranous +  and scarious +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
toothed +, lobed +  and entire +
Roland von Bothmer +, Claus Badenf +  and Niels H. Jacobsen +
1 (?) +  and 3 (?) +
straight +
basal +  and apical +
3.5 cm35 mm <br />0.035 m <br /> (9 cm90 mm <br />0.09 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
not evident +
flat +  and more or less involute +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
spikelike +
hairy +  and glabrous +
pedicellate +  and sessile +
Foxtail barley +, Squirreltail barley +, Squirreltail grass +, Orge agréable +, Queue d'écureuil +  and Orge queue d'écureuil +
not bulbous-based +
straight +
geniculate +
20 cm200 mm <br />0.2 m <br /> (80 cm800 mm <br />0.8 m <br />) +
not woody +
Conn. +, N.J. +, N.Y. +, Wash. +, Kans. +, Mont. +, N.Dak. +, Nebr. +, Okla. +, S.Dak. +, Del. +, D.C. +, Wis. +, W.Va. +, Mass. +, Maine +, N.H. +, R.I. +, Vt. +, Wyo. +, N.Mex. +, Tex. +, N.C. +, Tenn. +, S.C. +, Pa. +, Ark. +, Colo. +, Ill. +, Ind. +, Mich. +, Minn. +, Ohio +, Utah +, Va. +, Nev. +, Alaska +, Iowa +, Ariz. +, Calif. +, Idaho +, Md. +, Mo. +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.S. +, N.W.T. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Ky. +  and Oreg. +
liquid +, soft +  and hard +
capillary +
sessile +  and pedicellate +
laterally compressed +  and terete +
reduced +
divergent +  and strongly divergent +
shorter than to longer than the adjacent florets +
15mm +  and 85mm +
subtending +
setaceous +  and bent +
unequal +
3.5 cm35 mm <br />0.035 m <br /> (8.5 cm85 mm <br />0.085 m <br />) +
uncinate +
solid +  and hollow +
0.4 cm4 mm <br />0.004 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
stiffly membranous +  and coriaceous +
0 cm0 mm <br />0 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
inconspicuous +
lanceolate +
fleshy +  and membranous +
concealed +  and prominent +
2 +  and 1 +
hairy +  and glabrous +
well-developed +
slightly longer +
keeled +  and ovate +
subequal +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
straight +  and curved +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
dry +  and fleshy +
spikelike +
pubescent +  and glabrous +
3 cm30 mm <br />0.03 m <br /> (15 cm150 mm <br />0.15 m <br />) +
disarticulating +  and sessile +
bisexual +  and sterile +
terete +  and compressed +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
not papillate +
Critesion jubatwn +
Hordeum jubatum subsp. jubatum +
Hordeum jubatum +
subspecies +
membranous +
inconspicuous +
perennial +  and winter-annual +
annual +  and perennial +
plant +  and cespitose +
aquatic +  and terrestrial +