familyPoaceae
subfamilyPoaceae subfam. Pooideae
genusElymus
speciesElymus lanceolatus
subspeciesElymus lanceolatus subsp. riparius
Elymus lanceolatus subsp. riparius
Common names: Streambank wheatgrass
Synonyms: Elymus lanceolatus var. riparius
Treatment appears in FNA Volume 24. Treatment on page 329.
Culms usually 22-60 cm. Spikes 6-10 cm; internodes 3.5-10 mm, glabrous, sometimes scabrous. Spikelets 10-17 mm. Lemmas smooth, sometimes scabrous distally, mostly glabrous, margins sometimes hairy proximally.
Discussion
Elymus lanceolatus subsp. riparius grows throughout most of the western part of the range of E. lanceolatus, being more common in mesic habitats and clay soils than the other two subspecies.
Selected References
None.
Lower Taxa
None.
"decumbent" is not a number.
... more about "Elymus lanceolatus subsp. riparius"
absent +
common +
glabrous +
absent +
bulliform +
absent +
strigose +
2.5 cm25 mm <br />0.025 m <br /> (?) +
hairy +
0.2mm;0.3mm +
absent +
absent +
unbranched +
divergent +
straight +
arising +
single +
close +
free +
hard +
thick +
parallel +
not evident +
involute +
spikelike +
Streambank wheatgrass +
not branching +
annual +
climbing +
floating +
erect +
glabrous +
not woody +
sterile +
reduced +
1/3 +
capillary +
adjacent +
longer +
bisexual +
3-5-veined +
shorter than to longer than the adjacent florets +
subtending +
absent +
scabrous +
subequal +
equal +
awn-tipped +
scabrous +
acute +
alike +
punctate +
Present +
compound +
1.5 cm15 mm <br />0.015 m <br /> (?) +
absent +
glabrous +
scabrous +
scabrous +
absent +
distributed +
concentrated +
basal +
5(7)-veined +
adjacent +
shorter +
longer +
glabrous +
scabrous +
linear-lanceolate +
absent +
ciliolate +
membranous +
veined +
truncate +
inconspicuous +
lanceolate +
glumelike +
functional +
sterile +
hairy +
tapering +
narrow +
simple +
glabrous +
absent +
well-developed +
shorter +
slightly longer +
absent +
keeled +
subequal +
equal +
absent +
absent +
0-4 mm +
separating +
thin +
absent +
spikelike +
prolonged +
evident +
open +
closed +
open +
ebracteate +
divergent +
attached +
appressed +
distinct +
1.5-3 times longer than +
parallel-sided +
not papillate +
Elymus lanceolatus subsp. riparius +
Elymus lanceolatus +
subspecies +
hyaline +
membranous +
ribbed +
spaced +
absent +
inconspicuous +
rhizomatous +
perennial +
glaucous +