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Equisetum laevigatum A. Braun
smooth horsetail

General Information
Symbol: EQLA
Group: Horsetail
Family: Equisetaceae
Duration: Perennial
Growth Habit: Forb/herb
Native Status: CAN   N
L48   N
Data Source and Documentation
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Equisetum thumbnails at the Plants Gallery

Robert H. Mohlenbrock. USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements.

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 42. Provided by Kentucky Native Plant Society. Scanned by Omnitek Inc. Usage Requirements.

USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. Provided by NRCS National Wetland Team. Usage Requirements.



Symbol Scientific Name
EQFU2 Equisetum funstonii A.A. Eaton
EQKA2 Equisetum kansanum Schaffn.
EQLAF Equisetum laevigatum A. Braun subsp. funstonii (A.A. Eaton) Hartm.
HILA5 Hippochaete laevigata (A. Braun) Farw.


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Division Equisetophyta – Horsetails
Class Equisetopsida
Order Equisetales
Family Equisetaceae – Horsetail family
Genus Equisetum L. – horsetail
Species Equisetum laevigatum A. Braun – smooth horsetail

Subordinate Taxa

This plant has no children

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
New York
smooth scouring rush
U.S. Weed Information
Equisetum laevigatum
smooth horsetail
smooth scouringrush
This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.
WSWS Whitson, T.D. (ed.) et al.. 1996. Weeds of the West. Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming. Laramie, Wyoming.

Wetland Status

Interpreting Wetland Status

North America
Arid West FACW
Atlantic and Gulf Coastal Plain FAC
Eastern Mountains and Piedmont FACW
Great Plains FAC
Midwest FACW
Northcentral & Northeast FACW
Western Mountains, Valleys, and Coast FACW



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover