Index / Search / Elymus riparius
§1 Plant
Elymus riparius Wiegand
vernacular riverbank wildrye — species · Poaceae
§2Habit & range
Habit and range
- Growth habit
- Graminoid
- Duration
- Perennial
- Group
- Monocot
- Family
- Poaceae Barnhart
- Genus
- Elymus
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 289 counties across 17 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- Low
- Shade
- Low
- Moisture use
- High
- Fire
- High
- Salinity
- None
- Anaerobic
- Medium
- CaCO₃
- Medium
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -33 °F minimum
- Frost-free days
- 100 min.
- Precipitation
- 24–55 in/yr
- pH range
- 4.5–7.2
- Root depth
- 10 in min.
- Fertility need
- Medium
- Soil texture
- coarse, medium, fine
§3c
Form & growth
- Growth form
- Bunch
- Growth rate
- Moderate
- Lifespan
- Moderate
- Mature height
- 4.5 ft
- Foliage texture
- Coarse
- Foliage colour
- Dark Green
- Porosity (summer)
- Moderate
- Porosity (winter)
- Porous
- Flower colour
- Yellow
- Fruit colour
- Brown
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Mid Summer
- Seed abundance
- Medium
- Seed begins
- Summer
- Seed ends
- Fall
- Spread rate
- Moderate
- Stratify
- No
- Seeds / lb
- 125,000
- Propagation
- seed
§3e
Use & availability
- Commercial availability
- Routinely Available
- Nursery stock
- No
- Palatable, human
- No
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 289 counties across 17 states/territories.
Arkansas view state ↗ 7 N ▾
Delaware view state ↗ 1 N ▾
District of Columbia view state ↗ 1 N ▾
Georgia view state ↗ 4 N ▾
Kentucky view state ↗ 38 N ▾
- Allen 21003
- Bath 21011
- Bullitt 21029
- Campbell 21037
- Carter 21043
- Christian 21047
- Clark 21049
- Clinton 21053
- Elliott 21063
- Fayette 21067
- Floyd 21071
- Franklin 21073
- Greenup 21089
- Harlan 21095
- Harrison 21097
- Hart 21099
- Henry 21103
- Jackson 21109
- Jefferson 21111
- Jessamine 21113
- Johnson 21115
- Kenton 21117
- Lee 21129
- Letcher 21133
- Lewis 21135
- McCreary 21147
- McLean 21149
- Menifee 21165
- Montgomery 21173
- Owen 21187
- Pike 21195
- Pulaski 21199
- Rockcastle 21203
- Rowan 21205
- Scott 21209
- Spencer 21215
- Wayne 21231
- Wolfe 21237
Massachusetts view state ↗ 7 N ▾
Mississippi view state ↗ 4 N ▾
New Hampshire view state ↗ 9 N ▾
New Jersey view state ↗ 12 N ▾
New York view state ↗ 47 N ▾
- Albany 36001
- Allegany 36003
- Bronx 36005
- Broome 36007
- Cattaraugus 36009
- Cayuga 36011
- Chautauqua 36013
- Chemung 36015
- Chenango 36017
- Columbia 36021
- Delaware 36025
- Dutchess 36027
- Erie 36029
- Essex 36031
- Genesee 36037
- Greene 36039
- Hamilton 36041
- Herkimer 36043
- Jefferson 36045
- Madison 36053
- Montgomery 36057
- Niagara 36063
- Oneida 36065
- Onondaga 36067
- Ontario 36069
- Orange 36071
- Oswego 36075
- Otsego 36077
- Putnam 36079
- Rensselaer 36083
- Richmond 36085
- Rockland 36087
- Saratoga 36091
- Schenectady 36093
- Schoharie 36095
- St. Lawrence 36089
- Steuben 36101
- Sullivan 36105
- Tioga 36107
- Tompkins 36109
- Ulster 36111
- Warren 36113
- Washington 36115
- Wayne 36117
- Westchester 36119
- Wyoming 36121
- Yates 36123
North Carolina view state ↗ 6 N ▾
Pennsylvania view state ↗ 66 N ▾
- Adams 42001
- Allegheny 42003
- Armstrong 42005
- Beaver 42007
- Bedford 42009
- Berks 42011
- Blair 42013
- Bradford 42015
- Bucks 42017
- Butler 42019
- Cambria 42021
- Cameron 42023
- Carbon 42025
- Centre 42027
- Chester 42029
- Clarion 42031
- Clearfield 42033
- Clinton 42035
- Columbia 42037
- Crawford 42039
- Cumberland 42041
- Dauphin 42043
- Delaware 42045
- Elk 42047
- Erie 42049
- Fayette 42051
- Forest 42053
- Franklin 42055
- Fulton 42057
- Greene 42059
- Huntingdon 42061
- Indiana 42063
- Jefferson 42065
- Juniata 42067
- Lackawanna 42069
- Lancaster 42071
- Lawrence 42073
- Lebanon 42075
- Lehigh 42077
- Luzerne 42079
- Lycoming 42081
- McKean 42083
- Mercer 42085
- Monroe 42089
- Montgomery 42091
- Montour 42093
- Northampton 42095
- Northumberland 42097
- Perry 42099
- Philadelphia 42101
- Pike 42103
- Potter 42105
- Schuylkill 42107
- Snyder 42109
- Somerset 42111
- Sullivan 42113
- Susquehanna 42115
- Tioga 42117
- Union 42119
- Venango 42121
- Warren 42123
- Washington 42125
- Wayne 42127
- Westmoreland 42129
- Wyoming 42131
- York 42133
Rhode Island view state ↗ 2 N ▾
Vermont view state ↗ 10 N ▾
Virginia view state ↗ 45 N ▾
- Accomack 51001
- Albemarle 51003
- Alleghany 51005
- Appomattox 51011
- Arlington 51013
- Augusta 51015
- Bath 51017
- Bedford 51019
- Botetourt 51023
- Carroll 51035
- Clarke 51043
- Craig 51045
- Culpeper 51047
- Cumberland 51049
- Fairfax 51059
- Fauquier 51061
- Floyd 51063
- Fluvanna 51065
- Frederick 51069
- Giles 51071
- Greene 51079
- Greensville 51081
- Halifax 51083
- Henry 51089
- Highland 51091
- Loudoun 51107
- Madison 51113
- Mathews 51115
- Montgomery 51121
- Nelson 51125
- Orange 51137
- Page 51139
- Patrick 51141
- Prince Edward 51147
- Rappahannock 51157
- Rockbridge 51163
- Rockingham 51165
- Scott 51169
- Shenandoah 51171
- Stafford 51179
- Sussex 51183
- Tazewell 51185
- Virginia Beach (city) 51810
- Warren 51187
- Wise 51195
West Virginia view state ↗ 25 N ▾
- Berkeley 54003
- Braxton 54007
- Brooke 54009
- Calhoun 54013
- Fayette 54019
- Greenbrier 54025
- Hampshire 54027
- Hancock 54029
- Hardy 54031
- Jefferson 54037
- Marion 54049
- Mason 54053
- Mercer 54055
- Monongalia 54061
- Monroe 54063
- Morgan 54065
- Ohio 54069
- Pocahontas 54075
- Preston 54077
- Randolph 54083
- Summers 54089
- Tucker 54093
- Upshur 54097
- Webster 54101
- Wetzel 54103
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/ELRI ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/5290259 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T05:45:41Z