Index / Search / Equisetum laevigatum
§1 Plant
Equisetum laevigatum A. Braun
vernacular smooth horsetail — species · Equisetaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Horsetail
- Family
- Equisetaceae Michx. ex DC.
- Genus
- Equisetum
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 576 counties across 18 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- None
- Shade
- High
- Moisture use
- Low
- Fire
- High
- Salinity
- Low
- Anaerobic
- High
- CaCO₃
- Low
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -38 °F minimum
- Frost-free days
- 90 min.
- Precipitation
- 10–45 in/yr
- pH range
- 4.5–6.5
- Root depth
- 10 in min.
- Fertility need
- Low
- Soil texture
- medium, fine
§3c
Form & growth
- Growth form
- Single Crown
- Growth rate
- Rapid
- Lifespan
- Moderate
- Mature height
- 5 ft
- Foliage colour
- Green
- Porosity (summer)
- Porous
- Porosity (winter)
- Porous
- Flower colour
- Green
- Fruit colour
- Brown
- Fire resistant
- Yes
- N fixation
- None
- Toxicity
- Moderate
§3d
Reproduction
- Bloom period
- Early Spring
- Seed abundance
- Medium
- Seed begins
- Spring
- Seed ends
- Summer
- Spread rate
- Moderate
- Stratify
- No
- Propagation
- bare root, sprigs
§3e
Use & availability
- Commercial availability
- No Known Source
- Nursery stock
- No
- Palatable, human
- No
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 576 counties across 18 states/territories.
Arizona view state ↗ 8 N ▾
Arkansas view state ↗ 1 N ▾
Illinois view state ↗ 77 N ▾
- Adams 17001
- Alexander 17003
- Boone 17007
- Brown 17009
- Bureau 17011
- Calhoun 17013
- Carroll 17015
- Cass 17017
- Champaign 17019
- Christian 17021
- Clark 17023
- Clay 17025
- Coles 17029
- Cook 17031
- De Witt 17039
- DeKalb 17037
- Douglas 17041
- DuPage 17043
- Edgar 17045
- Edwards 17047
- Ford 17053
- Fulton 17057
- Greene 17061
- Grundy 17063
- Hancock 17067
- Hardin 17069
- Henderson 17071
- Henry 17073
- Iroquois 17075
- Jackson 17077
- Jasper 17079
- Jersey 17083
- Jo Daviess 17085
- Kane 17089
- Kankakee 17091
- Kendall 17093
- Knox 17095
- Lake 17097
- LaSalle 17099
- Lee 17103
- Livingston 17105
- Logan 17107
- Macon 17115
- Macoupin 17117
- Madison 17119
- Marshall 17123
- Mason 17125
- McDonough 17109
- McHenry 17111
- McLean 17113
- Menard 17129
- Mercer 17131
- Monroe 17133
- Morgan 17137
- Ogle 17141
- Peoria 17143
- Piatt 17147
- Pike 17149
- Putnam 17155
- Randolph 17157
- Rock Island 17161
- Sangamon 17167
- Schuyler 17169
- Scott 17171
- St. Clair 17163
- Stark 17175
- Stephenson 17177
- Tazewell 17179
- Union 17181
- Vermilion 17183
- Wabash 17185
- Warren 17187
- Whiteside 17195
- Will 17197
- Williamson 17199
- Winnebago 17201
- Woodford 17203
Indiana view state ↗ 36 N ▾
- Benton 18007
- Carroll 18015
- Cass 18017
- Clark 18019
- Clinton 18023
- Daviess 18027
- Decatur 18031
- Elkhart 18039
- Fountain 18045
- Fulton 18049
- Grant 18053
- Hamilton 18057
- Hendricks 18063
- Howard 18067
- Knox 18083
- Kosciusko 18085
- Lagrange 18087
- Lake 18089
- LaPorte 18091
- Madison 18095
- Marion 18097
- Marshall 18099
- Miami 18103
- Newton 18111
- Porter 18127
- Posey 18129
- Pulaski 18131
- Shelby 18145
- Steuben 18151
- Sullivan 18153
- Tippecanoe 18157
- Wabash 18169
- Warren 18171
- Warrick 18173
- White 18181
- Whitley 18183
Iowa view state ↗ 75 N ▾
- Adams 19003
- Audubon 19009
- Benton 19011
- Black Hawk 19013
- Boone 19015
- Bremer 19017
- Buchanan 19019
- Calhoun 19025
- Carroll 19027
- Cedar 19031
- Cerro Gordo 19033
- Cherokee 19035
- Clarke 19039
- Clay 19041
- Clinton 19045
- Crawford 19047
- Dallas 19049
- Davis 19051
- Decatur 19053
- Delaware 19055
- Des Moines 19057
- Dubuque 19061
- Emmet 19063
- Floyd 19067
- Fremont 19071
- Greene 19073
- Guthrie 19077
- Hamilton 19079
- Hancock 19081
- Hardin 19083
- Harrison 19085
- Ida 19093
- Iowa 19095
- Jackson 19097
- Jasper 19099
- Jefferson 19101
- Johnson 19103
- Jones 19105
- Kossuth 19109
- Lee 19111
- Linn 19113
- Louisa 19115
- Lyon 19119
- Madison 19121
- Mahaska 19123
- Marion 19125
- Marshall 19127
- Mills 19129
- Mitchell 19131
- Monona 19133
- Montgomery 19137
- Muscatine 19139
- O'Brien 19141
- Osceola 19143
- Page 19145
- Palo Alto 19147
- Plymouth 19149
- Pocahontas 19151
- Polk 19153
- Pottawattamie 19155
- Poweshiek 19157
- Sac 19161
- Scott 19163
- Shelby 19165
- Sioux 19167
- Story 19169
- Union 19175
- Van Buren 19177
- Warren 19181
- Washington 19183
- Webster 19187
- Winnebago 19189
- Winneshiek 19191
- Woodbury 19193
- Worth 19195
Kansas view state ↗ 60 N ▾
- Anderson 20003
- Barber 20007
- Barton 20009
- Brown 20013
- Butler 20015
- Cheyenne 20023
- Clark 20025
- Clay 20027
- Cloud 20029
- Coffey 20031
- Comanche 20033
- Cowley 20035
- Decatur 20039
- Dickinson 20041
- Doniphan 20043
- Douglas 20045
- Ellis 20051
- Ellsworth 20053
- Finney 20055
- Ford 20057
- Franklin 20059
- Geary 20061
- Grant 20067
- Hamilton 20075
- Harper 20077
- Harvey 20079
- Hodgeman 20083
- Jackson 20085
- Jefferson 20087
- Kingman 20095
- Kiowa 20097
- Leavenworth 20103
- Logan 20109
- Lyon 20111
- Marion 20115
- Marshall 20117
- McPherson 20113
- Meade 20119
- Morton 20129
- Ness 20135
- Osage 20139
- Ottawa 20143
- Pottawatomie 20149
- Pratt 20151
- Rawlins 20153
- Reno 20155
- Republic 20157
- Rice 20159
- Riley 20161
- Rooks 20163
- Saline 20169
- Scott 20171
- Shawnee 20177
- Sherman 20181
- Stafford 20185
- Sumner 20191
- Trego 20195
- Wallace 20199
- Wichita 20203
- Woodson 20207
Kentucky view state ↗ 1 N ▾
Minnesota view state ↗ 71 N ▾
- Aitkin 27001
- Anoka 27003
- Becker 27005
- Blue Earth 27013
- Brown 27015
- Cass 27021
- Chippewa 27023
- Chisago 27025
- Clay 27027
- Clearwater 27029
- Cottonwood 27033
- Crow Wing 27035
- Dakota 27037
- Dodge 27039
- Douglas 27041
- Faribault 27043
- Fillmore 27045
- Freeborn 27047
- Hennepin 27053
- Houston 27055
- Hubbard 27057
- Isanti 27059
- Jackson 27063
- Kandiyohi 27067
- Kittson 27069
- Koochiching 27071
- Lac qui Parle 27073
- Lake of the Woods 27077
- Le Sueur 27079
- Lincoln 27081
- Lyon 27083
- Mahnomen 27087
- Martin 27091
- Meeker 27093
- Mille Lacs 27095
- Morrison 27097
- Mower 27099
- Murray 27101
- Nobles 27105
- Norman 27107
- Olmsted 27109
- Otter Tail 27111
- Pennington 27113
- Pipestone 27117
- Polk 27119
- Pope 27121
- Ramsey 27123
- Red Lake 27125
- Redwood 27127
- Renville 27129
- Rice 27131
- Rock 27133
- Roseau 27135
- Sherburne 27141
- Sibley 27143
- St. Louis 27137
- Stearns 27145
- Steele 27147
- Stevens 27149
- Swift 27151
- Todd 27153
- Traverse 27155
- Wabasha 27157
- Wadena 27159
- Waseca 27161
- Washington 27163
- Watonwan 27165
- Wilkin 27167
- Winona 27169
- Wright 27171
- Yellow Medicine 27173
Missouri view state ↗ 23 N ▾
- Adair 29001
- Atchison 29005
- Boone 29019
- Buchanan 29021
- Cass 29037
- Dent 29065
- Douglas 29067
- Harrison 29081
- Howell 29091
- Iron 29093
- Jackson 29095
- Madison 29123
- Monroe 29137
- Nodaway 29147
- Oregon 29149
- Phelps 29161
- Pike 29163
- Pulaski 29169
- Randolph 29175
- Schuyler 29197
- St. Charles 29183
- St. Clair 29185
- Texas 29215
Montana view state ↗ 10 N ▾
Nebraska view state ↗ 57 N ▾
- Banner 31007
- Blaine 31009
- Box Butte 31013
- Boyd 31015
- Brown 31017
- Buffalo 31019
- Burt 31021
- Cass 31025
- Cedar 31027
- Chase 31029
- Cherry 31031
- Cuming 31039
- Custer 31041
- Dakota 31043
- Dawes 31045
- Dawson 31047
- Dixon 31051
- Dodge 31053
- Douglas 31055
- Dundy 31057
- Garden 31069
- Garfield 31071
- Grant 31075
- Hall 31079
- Holt 31089
- Hooker 31091
- Howard 31093
- Johnson 31097
- Kearney 31099
- Keith 31101
- Keya Paha 31103
- Kimball 31105
- Knox 31107
- Lancaster 31109
- Lincoln 31111
- Loup 31115
- McPherson 31117
- Merrick 31121
- Morrill 31123
- Nance 31125
- Nemaha 31127
- Nuckolls 31129
- Otoe 31131
- Phelps 31137
- Red Willow 31145
- Richardson 31147
- Rock 31149
- Sarpy 31153
- Saunders 31155
- Scotts Bluff 31157
- Sheridan 31161
- Sherman 31163
- Sioux 31165
- Thomas 31171
- Valley 31175
- Webster 31181
- Wheeler 31183
New York view state ↗ 19 N ▾
North Dakota view state ↗ 39 N ▾
- Adams 38001
- Barnes 38003
- Benson 38005
- Billings 38007
- Bottineau 38009
- Bowman 38011
- Burke 38013
- Cass 38017
- Dickey 38021
- Divide 38023
- Dunn 38025
- Eddy 38027
- Emmons 38029
- Golden Valley 38033
- Grant 38037
- Hettinger 38041
- Kidder 38043
- LaMoure 38045
- McHenry 38049
- McIntosh 38051
- McKenzie 38053
- McLean 38055
- Mercer 38057
- Morton 38059
- Mountrail 38061
- Pembina 38067
- Pierce 38069
- Ransom 38073
- Richland 38077
- Sargent 38081
- Sheridan 38083
- Sioux 38085
- Slope 38087
- Stark 38089
- Steele 38091
- Stutsman 38093
- Walsh 38099
- Ward 38101
- Williams 38105
Ohio view state ↗ 23 N ▾
Pennsylvania view state ↗ 3 N ▾
South Dakota view state ↗ 22 N ▾
- Aurora 46003
- Beadle 46005
- Brookings 46011
- Codington 46029
- Corson 46031
- Custer 46033
- Day 46037
- Deuel 46039
- Fall River 46047
- Gregory 46053
- Hamlin 46057
- Harding 46063
- Hutchinson 46067
- Lawrence 46081
- Lincoln 46083
- Meade 46093
- Pennington 46103
- Perkins 46105
- Roberts 46109
- Sully 46119
- Tripp 46123
- Yankton 46135
West Virginia view state ↗ 1 N ▾
Wisconsin view state ↗ 50 N ▾
- Adams 55001
- Ashland 55003
- Bayfield 55007
- Brown 55009
- Buffalo 55011
- Columbia 55021
- Crawford 55023
- Dane 55025
- Dodge 55027
- Door 55029
- Douglas 55031
- Dunn 55033
- Eau Claire 55035
- Fond du Lac 55039
- Grant 55043
- Green 55045
- Green Lake 55047
- Iowa 55049
- Jackson 55053
- Jefferson 55055
- Kenosha 55059
- La Crosse 55063
- Lafayette 55065
- Langlade 55067
- Manitowoc 55071
- Marinette 55075
- Marquette 55077
- Menominee 55078
- Milwaukee 55079
- Monroe 55081
- Oconto 55083
- Pepin 55091
- Pierce 55093
- Portage 55097
- Price 55099
- Racine 55101
- Richland 55103
- Rock 55105
- Sauk 55111
- Sheboygan 55117
- St. Croix 55109
- Trempealeau 55121
- Vernon 55123
- Walworth 55127
- Washburn 55129
- Washington 55131
- Waukesha 55133
- Waupaca 55135
- Waushara 55137
- Winnebago 55139
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/EQLA ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2687949 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T08:39:52Z