familyPoaceae
subfamilyPoaceae subfam. Pooideae
tribePoaceae tribe Triticeae
genusThinopyrum
speciesThinopyrum intermedium
subspeciesThinopyrum intermedium subsp. intermedium

Thinopyrum intermedium subsp. intermedium

Mary E. Barkworth
Common names: Intermediate "wheatgrass"
Treatment appears in FNA Volume 24. Treatment on page 376.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché, Annaliese Miller

Copyright: Utah State University

Glumes usually glabrous, smooth or scabrous over 1 or more veins; lemmas usually glabrous, sometimes with hairs on the margins.

Discussion

There is no known difference in geographic distribution between subsp. intermedium and subsp. barbulatum in the Flora region. Ogle (2001) states that T. intermedium subsp. intermedium is adapted to areas with 12-13 inches of rainfall per year.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."-3timesthelengthof" is not declared as a valid unit of measurement for this property.

... more about "Thinopyrum intermedium subsp. intermedium"
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2n chromosome quantity
43 +  and 42 +
Abaxial ligule presence
absent +
Abaxial ligule quantity
common +
Abaxial surface pubescence
glabrous +
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
strigose +
Anther quantity
3 +
Anther some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Apex architecture or shape
awned +
Apex pubescence
hairy +
Apex shape
mucronate +, obtuse +  and acute +
Arm cell presence
absent +
Auricle presence
absent +
Auricle some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
Author
Mary E. Barkworth +
Authority
(Host) Barkworth & D.R. Dewey +
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
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 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 shape
flat +  and convolute +
Blade width
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Branch shape
spikelike +
Callus pubescence
hairy +  and glabrous +
Common name
Intermediate "wheatgrass" +
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
hairy +  and glabrous +
Culm some measurement
50 cm500 mm <br />0.5 m <br /> (115 cm1,150 mm <br />1.15 m <br />) +
Culm texture
not woody +
Distal floret reproduction
sterile +
Distal floret size
reduced +
Distribution
Wash. +, B.C. +, Sask. +, Yukon +, Wyo. +, N.J. +, N.Mex. +, Tex. +, N.Y. +, Nev. +, Colo. +, Calif. +, Ga. +, Iowa +, Ariz. +, Idaho +, Mont. +, Oreg. +, Mass. +, Utah +, N.Dak. +, Nebr. +  and S.Dak. +
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
3 +  and 10 +
Floret reproduction
bisexual +
Floret shape
laterally compressed +  and terete +
Glume architecture
4-9-veined +
Glume architecture or pubescence or relief
smooth +
Glume architecture or shape
awned +
Glume fragility
stiff +
Glume height or length or size
shorter than to longer than the adjacent florets +
Glume position
subtending +
Glume presence
absent +
Glume pubescence
glabrous +
Glume pubescence or relief
scabrous +
Glume quantity
2 +
Glume shape
oblong +
Glume size
unequal +
Glume texture
indurate +  and coriaceous +
Glume variability
equal +
Glume width
narrowing +
Hair arrangement
distributed +
Hair shape
keeled +
Hair some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 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
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Keel pubescence or relief
scabrous +
Layer presence
absent +
Leaf arrangement
distichous +
Leaf margin arrangement
Overlapping (?) +
Lemma architecture
5-veined +
Lemma architecture or shape
not +  and awned +
Lemma pubescence
glabrous +
Lemma shape
awned +, mucronate +, acute +, obtuse +  and truncate +
Lemma some measurement
0.75 cm7.5 mm <br />0.0075 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Lemma texture
coriaceous +
Ligule presence
absent +
Ligule some measurement
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Ligule texture
membranous +
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 +
Lower glume architecture
5-6-veined +
Lower glume length
0.45 cm4.5 mm <br />0.0045 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
Lower glume width
1.5mm +  and 2.5mm +
Margin coloration
hyaline +  and whitish +
Margin width
thicker +
Midrib architecture
simple +
Midvein prominence
prominent +
Midvein pubescence or relief
scabrous +
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 +
Palea some measurement
0.7 cm7 mm <br />0.007 m <br /> (0.95 cm9.5 mm <br />0.0095 m <br />) +
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 architecture
disarticulating +
Rachis prominence
evident +
Rachis pubescence
with hairs +  and glabrous +
Rachis pubescence or relief
scabrous +
Reference
None +
Rib quantity
7 +  and 30 +
Sheath architecture
open +
Sheath architecture or pubescence or shape
ciliate +
Sheath condition
closed +
Sheath length
full +
Sheath pubescence
glabrous +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V24/V24 544.xml +
Spike architecture
disarticulating +
Spike architecture or arrangement
lax +
Spike arrangement
distichous +
Spike some measurement
8 cm80 mm <br />0.08 m <br /> (21 cm210 mm <br />0.21 m <br />) +
Spikelet architecture
subsessile +  and sessile +
Spikelet architecture or arrangement or growth form
solitary +
Spikelet arrangement
mixed +
Spikelet fixation
attached +
Spikelet fusion
distinct +
Spikelet orientation
Appressed (Ascending) +
Spikelet quantity
1 +
Spikelet reproduction
bisexual +  and sterile +
Spikelet shape
diamond--shaped +
Spikelet some measurement
1.1 cm11 mm <br />0.011 m <br /> (1.8 cm18 mm <br />0.018 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
Elytrigia intermedia +, Elymus hispidus +, Agropyron tricophorum +, Agropyron intermedium var. trichophorum +  and Agropyron intermedium +
Taxon family
Poaceae +
Taxon name
Thinopyrum intermedium subsp. intermedium +
Taxon parent
Thinopyrum intermedium +
Taxon rank
subspecies +
Terminal floret reproduction
sexual +
Tissue coloration
hyaline +
Tissue texture
membranous +
Upper glume architecture
5-7-veined +
Upper glume length
0.55 cm5.5 mm <br />0.0055 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
Upper glume width
2mm +  and 3mm +
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 +
Whole organism growth form or habitat
aquatic +  and terrestrial +
Whole organism pubescence
glaucous +
X chromosome quantity
7 +