familyPoaceae
subfamilyPoaceae subfam. Pooideae
tribePoaceae tribe Triticeae
genusAgropyron
speciesAgropyron fragile

Agropyron fragile

(Roth) P. Candargy
Mary E. Barkworth
Common names: Siberian wheatgrass
Synonyms: Agropyron sibiricum Agropyron mongolicum Agropyron fragile var. sibiricum Agropyron cristatum subsp. fragile
Treatment appears in FNA Volume 24. Treatment on page 279.
Revision as of 01:58, 30 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Plants not rhizomatous. Culms 30-100 cm, rarely geniculate. Ligules to 1 mm; blades 1.5-6 mm wide. Spikes (5) 8-15 cm long, 5-13 mm wide, linear to narrowly lanceolate; internodes 1.5-5 mm. Spikelets 7-16 mm, appressed or diverging up to 30 (35) ° from the rachises. Glumes 3-5 mm, glabrous or hairy, often awned, awns 1-3 mm; lemmas 5-9 mm, keels scabrous distally, apices unawned, sometimes mucronate, mucros up to 0.5 mm; anthers 4-5 mm. 2n = (14), 28, (42).

Distribution

Colo., N.Mex., Utah, Mont., Wyo., Alta., B.C., Man., N.W.T., Sask., Yukon, Nev., S.Dak.

Discussion

Agropyron fragile is native from the southern Volga basin through the Caucasus to Turkmenistan and Mongolia. It is more drought-tolerant than A. cristatum. Within the Flora region, A. fragile appears to be uncommon outside of experimental plantings. This may change as more cultivars become available.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."+timesaslongastheinternodes" is not declared as a valid unit of measurement for this property.

... more about "Agropyron fragile"
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2n chromosome atypical quantity
42 +  and 14 +
2n chromosome quantity
28 +
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
yellow +
Anther quantity
3 +
Anther some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Apex architecture or shape
awned +
Apex pubescence
hairy +
Apex shape
mucronate +
Arm cell presence
absent +
Auricle presence
absent +
Author
Mary E. Barkworth +
Authority
(Roth) P. Candargy +
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
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 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 shape
cross +, linear +  and narrowly lanceolate +
Blade width
0.15 cm1.5 mm <br />0.0015 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Branch shape
spikelike +
Callus pubescence
hairy +  and glabrous +
Common name
Siberian 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 shape
geniculate +
Culm some measurement
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Culm texture
not woody +
Distal floret reproduction
sterile +
Distal floret size
reduced +
Distribution
Colo. +, N.Mex. +, Utah +, Mont. +, Wyo. +, Alta. +, B.C. +, Man. +, N.W.T. +, Sask. +, Yukon +, Nev. +  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 16 +
Floret reproduction
bisexual +
Floret shape
laterally compressed +  and terete +
Glume architecture
1-5-veined +
Glume architecture or shape
awned +
Glume height or length or size
shorter +
Glume position
subtending +
Glume presence
absent +
Glume pubescence
hairy +  and glabrous +
Glume quantity
2 +
Glume shape
obovate +, ovate +, rectangular +, lanceolate +  and subulate +
Glume size
unequal +
Glume some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Glume variability
equal +
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 +
Inflorescence architecture
compound +
Inflorescence position or structure subtype
terminal +
Inflorescences spike shape
pectinate +
Internode architecture
solid +  and hollow +
Internode presence
absent +
Internode some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Keel pubescence or relief
scabrous +
Layer presence
absent +
Leaf arrangement
distichous +
Leaf margin arrangement
Overlapping (?) +
Lemma architecture
5-7-veined +
Lemma architecture or shape
not +  and awned +
Lemma position relational
exceeding +
Lemma shape
acute +  and awned +
Lemma some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Lemma texture
stiffly membranous +  and coriaceous +
Ligule architecture or relief
erose +
Ligule presence
absent +
Ligule some measurement
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 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 +
Midrib architecture
simple +
Mucro some measurement
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Node prominence
concealed +  and prominent +
Number of lower taxa
0 +
Other quantity
2 +  and 1 +
Ovary presence
absent +
Ovary pubescence
hairy +  and glabrous +
Palea architecture or shape
bifid +
Palea development
well-developed +
Palea height or length or size
slightly 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 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V24/V24 398.xml +
Spike architecture
ebracteate +
Spike length
8 cm80 mm <br />0.08 m <br /> (?) +  and 15 cm150 mm <br />0.15 m <br /> (?) +
Spike shape
linear +  and narrowly lanceolate +
Spikelet architecture
subsessile +  and sessile +
Spikelet architecture or arrangement or growth form
solitary +
Spikelet arrangement
divergent +
Spikelet fixation
attached +
Spikelet fusion
distinct +
Spikelet orientation
Diverging (Appressed) +
Spikelet quantity
1 +  and 5 +
Spikelet reproduction
bisexual +  and sterile +
Spikelet shape
terete +  and compressed +
Spikelet some measurement
0.7 cm7 mm <br />0.007 m <br /> (1.6 cm16 mm <br />0.016 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
Agropyron sibiricum +, Agropyron mongolicum +, Agropyron fragile var. sibiricum +  and Agropyron cristatum subsp. fragile +
Taxon family
Poaceae +
Taxon name
Agropyron fragile +
Taxon parent
Agropyron +
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
not 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 +
X chromosome quantity
7 +