familyPoaceae
subfamilyPoaceae subfam. Pooideae
tribePoaceae tribe Triticeae
genus×elyhordeum
species×elyhordeum pilosilemma

×elyhordeum pilosilemma

(W.W. Mitch. & H.J.
Mary E. Barkworth
Synonyms: Agrohordeum pilosilemma
Treatment appears in FNA Volume 24. Treatment on page 284.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché, Annaliese Miller

Copyright: Utah State University

Culms 40-75 cm, erect, glabrous. Sheaths glabrous or pubescent; blades 6-15 cm long, 2-4 mm wide, flat, adaxial surfaces glabrous or hairy. Spikes 6-12 cm long, 5-7 mm wide including the awns, erect to arching, with 1-2 spikelets per node; internodes 2-5 mm, concealed by the spikelets. Spikelets 7-13 mm, with 2-3 florets and 2-3 glumes. Glumes 10-18 mm including the awns, not indurate at the base, linear to linear-lanceolate, hispid, 1-3-veined; lemmas 7-10 mm, evenly pilose, hairs about 0.2 mm, awns as long as to slightly longer than the lemma bodies; anthers 1-1.5 mm, indehiscent. In = 28.

Distribution

Alaska

Discussion

×Elyhordeum pilosilemma is a hybrid between Elymus macrourus and Hordeum jubatum that occurs in many locations where the two parental species co-occur. It is very similar to ×E. jordalii, a hybrid between E. macrourus and H. brachyantherum.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "×elyhordeum pilosilemma"
RDF feed
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 +
Adaxial surface pubescence
hairy +  and glabrous +
Anther dehiscence
indehiscent +
Anther quantity
3 +
Anther some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Apex architecture or shape
awned +
Apex pubescence
hairy +
Apex shape
toothed +, lobed +  and entire +
Arm cell presence
absent +
Auricle presence
absent +
Author
Mary E. Barkworth +
Authority
(W.W. Mitch. & H.J. +
Awn architecture
unbranched +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn length or size
slightly longer +
Awn orientation
arising +
Awn position
basal +  and apical +
Awn position or structure subtype
terminal +
Awn quantity
single +
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 length
6 cm60 mm <br />0.06 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Blade prominence
not evident +
Blade prominence or shape
flat +
Blade shape
cross +, linear +  and narrowly lanceolate +
Blade width
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Branch shape
spikelike +
Callus pubescence
hairy +  and glabrous +
Central spikelet architecture
nearly +  and sessile +
Culm architecture
not branching +
Culm architecture or arrangement or growth form
solitary +
Culm duration
annual +
Culm growth form
climbing +
Culm growth form or location
floating +
Culm orientation
erect +
Culm pubescence
glabrous +
Culm some measurement
40 cm400 mm <br />0.4 m <br /> (75 cm750 mm <br />0.75 m <br />) +
Culm texture
not woody +
Distal floret reproduction
sterile +
Distal floret size
reduced +
Distribution
Alaska +
Embryo quantity
1/3 +
Endosperm texture
liquid +, soft +  and hard +
Filament shape
capillary +
Floret architecture
pistillate +  and staminate +
Floret arrangement
adjacent +
Floret length or size
longer +
Floret quantity
2 +  and 3 +
Floret reproduction
bisexual +
Floret shape
laterally compressed +  and terete +
Glume architecture
1-3-veined +
Glume architecture or shape
awned +
Glume height or length or size
shorter than to longer than the adjacent florets +
Glume position
subtending +
Glume presence
absent +
Glume pubescence
hispid +
Glume quantity
2 +  and 3 +
Glume shape
linear +  and linear-lanceolate +
Glume size
unequal +
Glume some measurement
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Glume texture
not indurate +
Glume variability
equal +
Hair shape
uncinate +
Hair some measurement
0.2 cm2 mm <br />0.002 m <br /> (?) +
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 +
Internode some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Lateral spikelet architecture
pedicellate +
Layer presence
absent +
Leaf arrangement
distichous +
Leaf margin arrangement
Overlapping (?) +
Lemma architecture
5(7)-veined +
Lemma architecture or shape
awned +
Lemma pubescence
pilose +
Lemma shape
keeled +, lanceolate +  and rectangular +
Lemma some measurement
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Lemma texture
stiffly membranous +  and coriaceous +
Ligule presence
absent +
Lodicule architecture
veined +
Lodicule architecture or pubescence or shape
ciliate +
Lodicule architecture or shape
truncate +
Lodicule prominence
inconspicuous +
Lodicule quantity
2 +
Lodicule shape
lanceolate +
Lodicule texture
fleshy +  and membranous +
Midrib architecture
simple +
Node prominence
concealed +  and prominent +
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 shape
keeled +
Palea size
subequal +
Papilla presence
absent +
Pedicel presence
absent +
Pedicel quantity
0-4 mm +
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 prominence
evident +
Reference
None +
Sheath architecture
open +
Sheath condition
closed +
Sheath length
full +
Sheath pubescence
pubescent +  and glabrous +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V24/V24 407.xml +
Spike architecture
ebracteate +
Spike length
6 cm60 mm <br />0.06 m <br /> (?) +  and 12 cm120 mm <br />0.12 m <br /> (?) +
Spike shape
spikelike +
Spikelet architecture
subsessile +  and sessile +
Spikelet arrangement
mixed +
Spikelet atypical quantity
7 (?) +
Spikelet fixation
attached +
Spikelet fusion
distinct +
Spikelet quantity
1 +  and 2 +
Spikelet reproduction
bisexual +  and sterile +
Spikelet shape
terete +  and compressed +
Spikelet some measurement
0.7 cm7 mm <br />0.007 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
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
Agrohordeum pilosilemma +
Taxon family
Poaceae +
Taxon name
×elyhordeum pilosilemma +
Taxon parent
×elyhordeum +
Taxon rank
species +
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 architecture
rhizomatous +
Whole organism arrangement or pubescence
tufted +
Whole organism duration
perennial +
Whole organism growth form
plant +  and cespitose +
Whole organism growth form or habitat
aquatic +  and terrestrial +
X chromosome quantity
7 +