familyPoaceae
subfamilyPoaceae subfam. Pooideae
tribePoaceae tribe Triticeae
genusHordeum
speciesHordeum murinum
subspeciesHordeum murinum subsp. leporinum

Hordeum murinum subsp. leporinum

(Link) Arcang.
Roland von Bothmer, Claus Badenf, Niels H. Jacobsen
Common names: Mouse barley
Introduced
Synonyms: Hordeum leporinum Critesion murinum subsp. leporinum
Treatment appears in FNA Volume 24. Treatment on page 250.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché, Annaliese Miller

Copyright: Utah State University

Plants winter-annuals. Culms 30-110 cm. Leaves green. Spikes green at anthesis, often more or less purple just before maturity. Central floret pedicellate; lemmas and awns shorter than those of the lateral florets; anthers 0.9-3 mm. Lateral spikelets: paleas scabrous on the lower 1/2; anthers 1.2-3.2 mm; rachillas about 0.25 mm, pale. 2n = 14, 28, 42.

Discussion

Hordeum murinum subsp. leporinum grows in waste places, roadsides, and disturbed areas in arid regions. It is native to the Mediterranean region. It is now established in the Flora region, being most common in the western United States. A hexaploid cytotype has been found in Turkey, Armenia, Turkmenistan, and Iran. It has been named H. leporinum var. simulans Bowden. It is treated here as part of H. murinum subsp. leporinum.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Hordeum murinum subsp. leporinum"
RDF feed
2n chromosome quantity
42 +, 28 +  and 14 +
Abaxial ligule presence
absent +
Abaxial ligule quantity
common +
Adaxial cell presence
absent +
Adaxial cell shape
bulliform +
Adaxial ligule architecture or pubescence or shape
ciliate +
Adaxial ligule presence
absent +
Adaxial ligule texture
membranous +  and scarious +
Anther coloration
gray +  and yellow +
Anther quantity
3 +
Anther some measurement
0.12 cm1.2 mm <br />0.0012 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
Apex architecture or shape
awned +
Apex pubescence
hairy +
Apex shape
toothed +, lobed +  and entire +
Arm cell presence
absent +
Auricle presence
absent +
Auricle some measurement
0 cm0 mm <br />0 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Author
Roland von Bothmer +, Claus Badenf +  and Niels H. Jacobsen +
Authority
(Link) Arcang. +
Awn architecture
unbranched +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn orientation
arising +
Awn position
basal +  and apical +
Awn position or structure subtype
terminal +
Awn quantity
single +
Awn some measurement
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Back shape
keeled +  and rounded +
Basal floret quantity
1 +  and 2 +
Base architecture
pseudopetiolate +  and branching +
Base arrangement
close +
Base fusion
free +
Base position
intravaginal +, extravaginal +, branching +  and basal +
Base size
swelling +
Base texture
hard +
Base width
thick +
Blade arrangement
parallel +
Blade arrangement or course or shape
linear +
Blade prominence
not evident +
Blade prominence or shape
flat +
Blade pubescence
pilose +  and glabrous +
Blade pubescence or relief
scabrous +
Blade shape
flat +  and more or less involute +
Blade some measurement
0 cm0 mm <br />0 m <br /> (28 cm280 mm <br />0.28 m <br />) +
Branch shape
spikelike +
Callus pubescence
hairy +  and glabrous +
Central spikelet architecture
sessile +
Central spikelet reproduction
bisexual +
Common name
Mouse barley +
Culm architecture
not branching +
Culm architecture or arrangement or growth form
solitary +
Culm atypical some measurement
150 +
Culm duration
annual +
Culm growth form
climbing +
Culm growth form or location
floating +
Culm growth form or orientation
prostrate +
Culm orientation
erect +
Culm shape
geniculate +
Culm some measurement
30 cm300 mm <br />0.3 m <br /> (110 cm1,100 mm <br />1.1 m <br />) +
Culm texture
not woody +
Distal floret reproduction
sterile +
Distal floret size
reduced +
Distribution
Conn. +, Mass. +, Maine +, N.Y. +, Wash. +, Del. +, Utah +, Va. +, Idaho +, Oreg. +, D.C. +, Pacific Islands (Hawaii) +, Md. +, Wyo. +, N.J. +, N.Mex. +, Tex. +, N.C. +, Pa. +, Okla. +, Calif. +, Nev. +, Colo. +, Alta. +, B.C. +, Ala. +, Ga. +, Ariz. +, Mont. +  and S.C. +
Embryo quantity
1/3 +
Endosperm texture
liquid +, soft +  and hard +
Filament shape
capillary +
Floret architecture
sessile +  and pedicellate +
Floret arrangement
adjacent +
Floret length or size
longer +
Floret quantity
1 +
Floret reproduction
bisexual +
Floret shape
laterally compressed +  and terete +
Floret size
reduced +
Glume architecture
1-5-veined +
Glume architecture or shape
awned +
Glume height or length or size
shorter than to longer than the adjacent florets +
Glume length
11mm +  and 25mm +
Glume position
subtending +
Glume presence
absent +
Glume quantity
2 +
Glume shape
flattened +
Glume size
unequal +
Glume variability
equal +
Glume width
0.8mm +  and 1.8mm +
Hair shape
uncinate +
Hilum arrangement or course or shape
linear +
Hilum coloration or relief
punctate +
Hilum shape
Ovate (?) +
Illustration
Present +
Illustration copyright
Utah State University +
Illustrator
Cindy Roché +  and Annaliese Miller +
Inflorescence architecture
compound +
Inflorescence position or structure subtype
terminal +
Internode architecture
solid +  and hollow +
Internode presence
absent +
Lateral spikelet architecture
staminate +
Lateral spikelet reproduction
bisexual +  and sterile +
Layer presence
absent +
Leaf arrangement
distichous +
Leaf coloration
green +
Leaf margin arrangement
Overlapping (?) +
Lemma architecture
5-veined +
Lemma architecture or pubescence or relief
smooth +
Lemma architecture or shape
awned +
Lemma length
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Lemma pubescence
glabrous +  and pubescent +
Lemma shape
ovate +
Lemma some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Lemma texture
stiffly membranous +  and coriaceous +
Lemma width
0mm +  and 2mm +
Ligule architecture or relief
erose +
Ligule architecture or shape
truncate +
Ligule coloration
hyaline +
Ligule presence
absent +
Ligule some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Lodicule architecture
veined +
Lodicule architecture or pubescence or shape
ciliate +
Lodicule architecture or shape
truncate +
Lodicule prominence
inconspicuous +
Lodicule pubescence
with 1+ cilia +  and glabrous +
Lodicule quantity
2 +
Lodicule shape
lanceolate +
Lodicule texture
fleshy +  and membranous +
Lower sheath pubescence
pilose +  and glabrous +
Margin architecture or pubescence or shape
ciliate +
Margin shape or vernation
involute +
Midrib architecture
simple +
Node prominence
concealed +  and prominent +
Node pubescence
glabrous +
Number of lower taxa
0 +
Other quantity
2 +  and 1 +
Ovary presence
absent +
Ovary pubescence
hairy +  and glabrous +
Palea development
well-developed +
Palea height or length or size
shorter +
Palea length or size
slightly longer +
Palea presence
absent +
Palea pubescence or relief
scabrous +
Palea shape
keeled +  and ovate +
Palea size
subequal +
Palea some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Palea variability
equal +
Papilla presence
absent +
Pedicel course
straight +  and curved +
Pedicel presence
absent +
Pedicel quantity
3 +
Pedicel some measurement
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Pericarp arrangement
separating +
Pericarp condition or texture
dry +
Pericarp texture
dry +  and fleshy +
Pericarp width
thin +
Pseudopetiole presence
absent +
Raceme shape
spikelike +
Rachilla length
prolonged +
Rachis architecture
disarticulating +
Rachis prominence
evident +
Reference
None +
Sheath architecture
open +
Sheath condition
closed +
Sheath length
full +
Sheath pubescence
glabrous +  and pubescent +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V24/V24 358.xml +
Special status
Introduced +
Spike architecture
ebracteate +
Spike length
3 cm30 mm <br />0.03 m <br /> (?) +  and 8 cm80 mm <br />0.08 m <br /> (?) +
Spikelet architecture
disarticulating +  and sessile +
Spikelet arrangement
mixed +
Spikelet condition
cultivated +
Spikelet fixation
attached +
Spikelet fusion
distinct +
Spikelet life cycle
falling +
Spikelet quantity
3 +
Spikelet reproduction
bisexual +  and sterile +
Spikelet shape
terete +  and compressed +
Stamen quantity
1 +  and 3 +
Starch-grain architecture
simple +  and compound +
Style-branch atypical quantity
4 +  and 1 +
Style-branch quantity
2 (?) +  and 3 (?) +
Style quantity
2 +
Subsidiary-cell architecture
parallel-sided +
Surface relief
not papillate +
Synonyms
Hordeum leporinum +  and Critesion murinum subsp. leporinum +
Taxon family
Poaceae +
Taxon name
Hordeum murinum subsp. leporinum +
Taxon parent
Hordeum murinum +
Taxon rank
subspecies +
Terminal floret reproduction
sexual +
Tissue coloration
hyaline +
Tissue texture
membranous +
Vein arrangement
converging +
Vein presence
absent +
Vein prominence
inconspicuous +
Vein quantity
2 (?) +
Vein size
major +
Volume
Volume 24 +
Whole-organism duration
perennial +  and winter-annual +
Whole organism architecture
rhizomatous +
Whole organism arrangement or pubescence
tufted +
Whole organism duration
annual +
Whole organism growth form
plant +
Whole organism growth form or habitat
aquatic +  and terrestrial +
X chromosome quantity
7 +