familyPoaceae
subfamilyPoaceae subfam. Pooideae
tribePoaceae tribe Triticeae
genusElymus
speciesElymus virginicus
varietyElymus virginicus var. intermedius

Elymus virginicus var. intermedius

(Vasey ex A. Gray) Bush
Mary E. Barkworth, Julian J.N. Campbell, Bjorn Salomon
Endemic
Synonyms: Hirsutiglumis Elymus hirsutiglumis
Treatment appears in FNA Volume 24. Treatment on page 298.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché, Annaliese Miller

Copyright: Utah State University

Plants often partly glaucous, becoming yellowish, reddish, or slightly purplish brown at maturity. Culms usually 60-120 cm; nodes usually 4-8, concealed or exposed; auricles and ligules usually poorly developed. Blades 4-18 mm wide, lax or involute, glabrous, scabridulous, or occasionally pubescent. Spikes 6-22 cm long, sheathed or exserted; spikelets hispidulous to villous-hirsute, usually glaucous; glumes 0.8-1.2 (2) mm wide, indurate and bowed out in the basal 2-4 mm. Anthesis early July to mid-august.

Discussion

Elymus virginicus var. intermedius grows in moist, base-rich soil in open forests and thickets, especially on rocky, gravelly, or sandy banks of larger streams. It grows from the central and southern Great Plains, through the central Mississippi and Ohio valleys, to the northeastern United States and adjacent Canada, but is rare to absent south of Oklahoma to Tennessee and to Maryland.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Elymus virginicus var. intermedius"
RDF feed
2n chromosome quantity
28 +
Abaxial ligule presence
absent +
Abaxial ligule quantity
common +
Abaxial surface architecture or pubescence or relief
smooth +
Abaxial surface pubescence or relief
scabrous +
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 architecture or pubescence or relief
smooth +
Adaxial surface pubescence
pubescent +  and glabrous +
Adaxial surface pubescence or relief
with hairs +  and scabrous +
Adaxial surface relief
scabridulous +
Anther atypical some measurement
4 cm40 mm <br />0.04 m <br /> (?) +
Anther quantity
3 +
Anther some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Apex architecture or shape
awned +
Apex pubescence
hairy +
Apex shape
bidentate +  and acute +
Arm cell presence
absent +
Auricle coloration
pale-brown +
Auricle presence
absent +
Auricle quantity
0-1.8 mm +
Author
Mary E. Barkworth +, Julian J.N. Campbell +  and Bjorn Salomon +
Authority
(Vasey ex A. Gray) Bush +
Awn architecture
unbranched +
Awn arrangement
divergent +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn atypical some measurement
5 cm50 mm <br />0.05 m <br /> (?) +  and 15 cm150 mm <br />0.15 m <br /> (?) +
Awn course
straight +
Awn orientation
arising +
Awn position
basal +  and apical +
Awn position or structure subtype
from the sinus +  and terminal +
Awn quantity
single +
Awn shape
not geniculate +
Awn some measurement
0.8 cm8 mm <br />0.008 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Back shape
keeled +  and rounded +
Basal floret quantity
1 +  and 2 +
Base architecture
3-5(8)-veined +  and sheathed +
Base arrangement
close +
Base fusion
free +
Base position
intravaginal +, extravaginal +, branching +  and basal +
Base size
swelling +
Base texture
hard +
Base width
thick +
Blade architecture or arrangement
lax +
Blade arrangement
parallel +
Blade arrangement or course or shape
linear +
Blade orientation
Spreading (?) +
Blade prominence
not evident +
Blade pubescence
pubescent +  and glabrous +
Blade relief
scabridulous +
Blade shape
cross +, linear +  and narrowly lanceolate +
Blade shape or vernation
involute +
Blade width
0.4 cm4 mm <br />0.004 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Branch shape
spikelike +
Bristle some measurement
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Callus pubescence
hairy +  and glabrous +
Culm architecture
not branching +
Culm architecture or arrangement or growth form
solitary +
Culm atypical some measurement
220 +
Culm duration
annual +
Culm growth form
climbing +
Culm growth form or location
floating +
Culm growth form or orientation
sometimes strongly decumbent +  and prostrate +
Culm orientation
erect +  and slightly decumbent +
Culm pubescence
glabrous +
Culm some measurement
60 cm600 mm <br />0.6 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
Culm texture
not woody +
Distal floret reproduction
sterile +
Distal floret size
reduced +
Distribution
Conn. +, N.J. +, N.Y. +, W.Va. +, Del. +, D.C. +, Wis. +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Labr.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Mass. +, Maine +, N.H. +, R.I. +, Vt. +, Fla. +, Wyo. +, Ky. +, N.C. +, N.Mex. +, Tex. +, La. +, N.Dak. +, Tenn. +, S.C. +, Pa. +, Va. +, Md. +, Ala. +, Kans. +, Nebr. +, Okla. +, S.Dak. +, Ark. +, Ill. +, Ga. +, Ind. +, Iowa +, Ariz. +, Ohio +, Mo. +, Minn. +, Mich. +  and Miss. +
Embryo quantity
1/3 +
Endosperm texture
liquid +, soft +  and hard +
Filament shape
capillary +
Floret architecture
pistillate +  and staminate +
Floret arrangement
adjacent +
Floret atypical quantity
6 +  and 2 +
Floret length or size
longer +
Floret quantity
3 +  and 4 +
Floret reproduction
bisexual +
Floret shape
laterally compressed +  and terete +
Glume architecture
(0)1-7-veined +
Glume architecture or shape
awned +
Glume height or length or size
shorter than to longer than the adjacent florets +
Glume position
basal +
Glume presence
absent +
Glume quantity
2 +
Glume relief
scabridulous +  and smooth +
Glume shape
bowed +
Glume size
subequal +
Glume some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Glume texture
indurate +
Glume variability
equal +
Glume width
0.8mm +  and 1.2mm +
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 atypical some measurement
1.5 cm15 mm <br />0.015 m <br /> (?) +
Internode length
3mm +  and 5mm +
Internode presence
absent +
Internode some measurement
0.2 cm2 mm <br />0.002 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
Internode thickness
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Keel pubescence
ciliate +  and scabrous +
Layer presence
absent +
Leaf arrangement
distributed +
Leaf arrangement or density
concentrated +
Leaf margin arrangement
Overlapping (?) +
Lemma architecture
5(7)-veined +
Lemma architecture or shape
not +  and awned +
Lemma height or length or size
shorter +
Lemma length or size
longer +
Lemma pubescence
villous-hirsute +  and glabrous +
Lemma relief
scabridulous +
Lemma shape
linear-lanceolate +
Lemma some measurement
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Lemma texture
stiffly membranous +  and coriaceous +
Ligule architecture
erose +  and entire +
Ligule presence
absent +
Ligule pubescence
ciliolate +
Ligule shape
acute +, rounded +  and truncate +
Ligule some measurement
1 cm10 mm <br />0.01 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 +
Lowest floret architecture or shape
glumelike +
Lowest floret function
functional +
Lowest floret reproduction
sterile +
Margin texture
firm +
Midrib architecture
simple +
Node prominence
exposed +  and concealed +
Node pubescence
pubescent +  and glabrous +
Node quantity
4 +  and 8 +
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
obtuse +
Palea size
subequal +
Palea some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 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 prominence
evident +
Reference
None +
Sheath architecture
open +
Sheath coloration
Purplish (?) +  and Reddish (?) +
Sheath condition
closed +
Sheath length
open +
Sheath pubescence
hirsute +  and glabrous +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V24/V24 420.xml +
Special status
Endemic +
Spike architecture
sheathed +
Spike length
6 cm60 mm <br />0.06 m <br /> (?) +  and 22 cm220 mm <br />0.22 m <br /> (?) +
Spike position
exserted +
Spikelet architecture
subsessile +  and sessile +
Spikelet arrangement
divergent +
Spikelet atypical quantity
5 (?) +
Spikelet fixation
attached +
Spikelet fixation or orientation
appressed +
Spikelet fusion
distinct +
Spikelet orientation
Patent (Usually appressed) +
Spikelet pubescence
glaucous +, hispidulous +  and villous-hirsute +
Spikelet quantity
2 +
Spikelet reproduction
bisexual +  and sterile +
Spikelet shape
terete +  and compressed +
Spikelet some measurement
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 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
Hirsutiglumis +  and Elymus hirsutiglumis +
Taxon family
Poaceae +
Taxon name
Elymus virginicus var. intermedius +
Taxon parent
Elymus virginicus +
Taxon rank
variety +
Terminal floret reproduction
sexual +
Tissue coloration
hyaline +
Tissue texture
membranous +
Tooth some measurement
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
Vein architecture or shape
ribbed +
Vein arrangement
spaced +
Vein presence
absent +
Vein prominence
inconspicuous +
Vein quantity
1 (?) +
Vein size
unequal +
Volume
Volume 24 +
Whole organism architecture
not rhizomatous +
Whole organism arrangement or pubescence
tufted +
Whole organism coloration
purplish brown +, reddish +  and yellowish +
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 +