Index / Search / Lolium perenne ssp. multiflorum
§1 Plant
Lolium perenne L. ssp. multiflorum (Lam.) Husnot
vernacular Italian ryegrass — subspecies · Poaceae
§2Habit & range
Habit and range
- Growth habit
- Graminoid
- Duration
- Annual, Perennial
- Group
- Monocot
- Family
- Poaceae Barnhart
- Genus
- Lolium
§2a
Native status, by region
- AK Alaska Introduced
- CAN Canada Introduced
- GL Greenland Introduced
- HI Hawaii Introduced
- L48 Lower 48 States Introduced
- SPM St. Pierre & Miquelon Introduced
§2b
County-level range
· 647 counties across 45 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- Low
- Shade
- Medium
- Moisture use
- Medium
- Fire
- Low
- Salinity
- High
- Anaerobic
- Low
- CaCO₃
- Medium
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -8 °F minimum
- Frost-free days
- 150 min.
- Precipitation
- 18–65 in/yr
- pH range
- 5–7.9
- Root depth
- 8 in min.
- Fertility need
- Medium
- Soil texture
- coarse, medium, fine
§3c
Form & growth
- Growth form
- Bunch
- Growth rate
- Rapid
- Lifespan
- Short
- Mature height
- 2.5 ft
- Foliage texture
- Fine
- Foliage colour
- 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
- Early Spring
- Seed abundance
- High
- Seed begins
- Spring
- Seed ends
- Spring
- Spread rate
- Moderate
- Stratify
- No
- Seeds / lb
- 217,000
- Propagation
- seed
§3e
Use & availability
- Commercial availability
- Routinely Available
- Nursery stock
- No
- Browse palatability
- Low
- Graze palatability
- Medium
- Palatable, human
- No
- Protein potential
- High
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 647 counties across 45 states/territories.
Alabama view state ↗ 19 I ▾
Alaska view state ↗ 5 I ▾
Arizona view state ↗ 6 I ▾
Arkansas view state ↗ 8 I ▾
California view state ↗ 47 I ▾
- Alameda 06001
- Amador 06005
- Butte 06007
- Calaveras 06009
- Contra Costa 06013
- Del Norte 06015
- El Dorado 06017
- Fresno 06019
- Glenn 06021
- Humboldt 06023
- Kern 06029
- Lake 06033
- Los Angeles 06037
- Madera 06039
- Marin 06041
- Mariposa 06043
- Mendocino 06045
- Merced 06047
- Monterey 06053
- Napa 06055
- Nevada 06057
- Orange 06059
- Placer 06061
- Plumas 06063
- Riverside 06065
- Sacramento 06067
- San Benito 06069
- San Bernardino 06071
- San Diego 06073
- San Francisco 06075
- San Joaquin 06077
- San Luis Obispo 06079
- San Mateo 06081
- Santa Barbara 06083
- Santa Clara 06085
- Santa Cruz 06087
- Shasta 06089
- Siskiyou 06093
- Solano 06095
- Sonoma 06097
- Stanislaus 06099
- Sutter 06101
- Tehama 06103
- Tulare 06107
- Tuolumne 06109
- Ventura 06111
- Yolo 06113
Colorado view state ↗ 9 I ▾
Delaware view state ↗ 1 I ▾
District of Columbia view state ↗ 1 I ▾
Georgia view state ↗ 4 I ▾
Hawaii view state ↗ 4 I ▾
Idaho view state ↗ 16 I ▾
Illinois view state ↗ 36 I ▾
- Alexander 17003
- Brown 17009
- Champaign 17019
- Coles 17029
- Cook 17031
- Crawford 17033
- DeKalb 17037
- DuPage 17043
- Ford 17053
- Franklin 17055
- Greene 17061
- Jackson 17077
- Jefferson 17081
- Jersey 17083
- Kane 17089
- Kendall 17093
- Lawrence 17101
- Macon 17115
- Madison 17119
- Marion 17121
- Massac 17127
- McHenry 17111
- Monroe 17133
- Morgan 17137
- Peoria 17143
- Perry 17145
- Piatt 17147
- Randolph 17157
- Richland 17159
- Sangamon 17167
- St. Clair 17163
- Stephenson 17177
- Union 17181
- Vermilion 17183
- Wabash 17185
- Williamson 17199
Indiana view state ↗ 10 I ▾
Iowa view state ↗ 1 I ▾
Kansas view state ↗ 18 I ▾
Kentucky view state ↗ 32 I ▾
- Barren 21009
- Boone 21015
- Bracken 21023
- Bullitt 21029
- Calloway 21035
- Campbell 21037
- Clark 21049
- Clay 21051
- Crittenden 21055
- Edmonson 21061
- Estill 21065
- Fayette 21067
- Franklin 21073
- Fulton 21075
- Graves 21083
- Henry 21103
- Hickman 21105
- Jefferson 21111
- Kenton 21117
- Lewis 21135
- Logan 21141
- Lyon 21143
- Madison 21151
- McCracken 21145
- Montgomery 21173
- Muhlenberg 21177
- Oldham 21185
- Pulaski 21199
- Rockcastle 21203
- Rowan 21205
- Trigg 21221
- Warren 21227
Louisiana view state ↗ 1 I ▾
Maine view state ↗ 6 I ▾
Massachusetts view state ↗ 12 I ▾
Minnesota view state ↗ 2 I ▾
Mississippi view state ↗ 31 I ▾
- Amite 28005
- Carroll 28015
- Choctaw 28019
- Claiborne 28021
- Clay 28025
- Coahoma 28027
- DeSoto 28033
- Forrest 28035
- George 28039
- Harrison 28047
- Holmes 28051
- Humphreys 28053
- Issaquena 28055
- Kemper 28069
- Lafayette 28071
- Lamar 28073
- Lauderdale 28075
- Lawrence 28077
- Lee 28081
- Leflore 28083
- Marshall 28093
- Pike 28113
- Quitman 28119
- Rankin 28121
- Scott 28123
- Sharkey 28125
- Tate 28137
- Tippah 28139
- Tishomingo 28141
- Washington 28151
- Webster 28155
Missouri view state ↗ 7 I ▾
Montana view state ↗ 13 I ▾
Nebraska view state ↗ 9 I ▾
Nevada view state ↗ 5 I ▾
New Hampshire view state ↗ 5 I ▾
New Jersey view state ↗ 14 I ▾
New Mexico view state ↗ 6 I ▾
New York view state ↗ 31 I ▾
- Albany 36001
- Bronx 36005
- Cattaraugus 36009
- Columbia 36021
- Delaware 36025
- Erie 36029
- Essex 36031
- Kings 36047
- Livingston 36051
- Monroe 36055
- Nassau 36059
- New York 36061
- Niagara 36063
- Oneida 36065
- Onondaga 36067
- Ontario 36069
- Orange 36071
- Queens 36081
- Richmond 36085
- Rockland 36087
- Saratoga 36091
- Schuyler 36097
- St. Lawrence 36089
- Suffolk 36103
- Tioga 36107
- Tompkins 36109
- Ulster 36111
- Warren 36113
- Wayne 36117
- Westchester 36119
- Yates 36123
North Carolina view state ↗ 67 I ▾
- Beaufort 37013
- Bertie 37015
- Brunswick 37019
- Buncombe 37021
- Caswell 37033
- Catawba 37035
- Chatham 37037
- Cherokee 37039
- Chowan 37041
- Clay 37043
- Cleveland 37045
- Columbus 37047
- Craven 37049
- Cumberland 37051
- Davidson 37057
- Durham 37063
- Edgecombe 37065
- Forsyth 37067
- Franklin 37069
- Gaston 37071
- Granville 37077
- Greene 37079
- Guilford 37081
- Halifax 37083
- Harnett 37085
- Haywood 37087
- Henderson 37089
- Hertford 37091
- Hoke 37093
- Hyde 37095
- Iredell 37097
- Jackson 37099
- Johnston 37101
- Lee 37105
- Lenoir 37107
- Lincoln 37109
- Macon 37113
- Madison 37115
- Martin 37117
- Mecklenburg 37119
- Montgomery 37123
- Northampton 37131
- Onslow 37133
- Orange 37135
- Pamlico 37137
- Pasquotank 37139
- Person 37145
- Pitt 37147
- Polk 37149
- Randolph 37151
- Richmond 37153
- Robeson 37155
- Rowan 37159
- Rutherford 37161
- Sampson 37163
- Scotland 37165
- Stokes 37169
- Surry 37171
- Swain 37173
- Tyrrell 37177
- Union 37179
- Vance 37181
- Warren 37185
- Washington 37187
- Wayne 37191
- Wilkes 37193
- Wilson 37195
North Dakota view state ↗ 1 I ▾
Oklahoma view state ↗ 10 I ▾
Oregon view state ↗ 22 I ▾
- Benton 41003
- Clackamas 41005
- Clatsop 41007
- Coos 41011
- Crook 41013
- Curry 41015
- Deschutes 41017
- Douglas 41019
- Jackson 41029
- Jefferson 41031
- Josephine 41033
- Klamath 41035
- Lane 41039
- Lincoln 41041
- Linn 41043
- Marion 41047
- Multnomah 41051
- Polk 41053
- Tillamook 41057
- Union 41061
- Washington 41067
- Yamhill 41071
Pennsylvania view state ↗ 32 I ▾
- Adams 42001
- Allegheny 42003
- Bedford 42009
- Berks 42011
- Bucks 42017
- Butler 42019
- Centre 42027
- Chester 42029
- Cumberland 42041
- Dauphin 42043
- Delaware 42045
- Erie 42049
- Forest 42053
- Franklin 42055
- Fulton 42057
- Huntingdon 42061
- Jefferson 42065
- Lackawanna 42069
- Lancaster 42071
- Lebanon 42075
- Lehigh 42077
- Luzerne 42079
- Mercer 42085
- Montgomery 42091
- Northampton 42095
- Philadelphia 42101
- Pike 42103
- Schuylkill 42107
- Warren 42123
- Wayne 42127
- Westmoreland 42129
- York 42133
South Carolina view state ↗ 38 I ▾
- Abbeville 45001
- Allendale 45005
- Anderson 45007
- Bamberg 45009
- Barnwell 45011
- Calhoun 45017
- Charleston 45019
- Cherokee 45021
- Chester 45023
- Chesterfield 45025
- Clarendon 45027
- Colleton 45029
- Dillon 45033
- Dorchester 45035
- Edgefield 45037
- Fairfield 45039
- Florence 45041
- Greenwood 45047
- Horry 45051
- Jasper 45053
- Kershaw 45055
- Lancaster 45057
- Laurens 45059
- Lee 45061
- Lexington 45063
- Marion 45067
- Marlboro 45069
- Newberry 45071
- Oconee 45073
- Orangeburg 45075
- Pickens 45077
- Richland 45079
- Saluda 45081
- Spartanburg 45083
- Sumter 45085
- Union 45087
- Williamsburg 45089
- York 45091
Tennessee view state ↗ 28 I ▾
- Blount 47009
- Campbell 47013
- Carroll 47017
- Cumberland 47035
- Davidson 47037
- Grundy 47061
- Hawkins 47073
- Haywood 47075
- Henry 47079
- Knox 47093
- Lauderdale 47097
- Madison 47113
- Marion 47115
- Marshall 47117
- Monroe 47123
- Montgomery 47125
- Morgan 47129
- Polk 47139
- Putnam 47141
- Roane 47145
- Rutherford 47149
- Sevier 47155
- Shelby 47157
- Stewart 47161
- Sumner 47165
- Tipton 47167
- Washington 47179
- Williamson 47187
Texas view state ↗ 2 I ▾
Utah view state ↗ 7 I ▾
Vermont view state ↗ 7 I ▾
Virginia view state ↗ 3 I ▾
Washington view state ↗ 28 I ▾
- Adams 53001
- Benton 53005
- Clallam 53009
- Clark 53011
- Cowlitz 53015
- Franklin 53021
- Garfield 53023
- Grant 53025
- Island 53029
- King 53033
- Kitsap 53035
- Kittitas 53037
- Klickitat 53039
- Lewis 53041
- Mason 53045
- Pacific 53049
- Pend Oreille 53051
- Pierce 53053
- San Juan 53055
- Skamania 53059
- Snohomish 53061
- Spokane 53063
- Stevens 53065
- Thurston 53067
- Wahkiakum 53069
- Walla Walla 53071
- Whitman 53075
- Yakima 53077
West Virginia view state ↗ 18 I ▾
Wisconsin view state ↗ 18 I ▾
Wyoming view state ↗ 3 I ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/LOPEM2 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/4129708 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z