Index / Search / Equisetum telmateia
§1 Plant
Equisetum telmateia Ehrh.
vernacular giant horsetail — species · Equisetaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Horsetail
- Family
- Equisetaceae Michx. ex DC.
- Genus
- Equisetum
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
County-level range
· 77 counties across 4 states/territories§3Cultivation
No cultivation specs.
USDA has not characterised this taxon. Roughly four out of five plants in the database lack the detailed cultivation record present here — typically because they have not been the focus of NRCS Plant Materials work. Range and distribution data are unaffected.
§4Counties, by state
Recorded in 77 counties across 4 states/territories.
California view state ↗ 32 N ▾
- Alameda 06001
- Amador 06005
- Butte 06007
- Contra Costa 06013
- Del Norte 06015
- Humboldt 06023
- Lake 06033
- Los Angeles 06037
- Marin 06041
- Mendocino 06045
- Mono 06051
- Monterey 06053
- Napa 06055
- Nevada 06057
- Orange 06059
- Plumas 06063
- Riverside 06065
- San Bernardino 06071
- San Diego 06073
- San Francisco 06075
- San Luis Obispo 06079
- San Mateo 06081
- Santa Barbara 06083
- Santa Clara 06085
- Santa Cruz 06087
- Shasta 06089
- Siskiyou 06093
- Solano 06095
- Sonoma 06097
- Trinity 06105
- Tuolumne 06109
- Ventura 06111
Idaho view state ↗ 2 N ▾
Oregon view state ↗ 21 N ▾
Washington view state ↗ 22 N ▾
- Chelan 53007
- Clallam 53009
- Clark 53011
- Columbia 53013
- Cowlitz 53015
- Grays Harbor 53027
- Island 53029
- Jefferson 53031
- King 53033
- Klickitat 53039
- Mason 53045
- Pacific 53049
- Pend Oreille 53051
- Pierce 53053
- San Juan 53055
- Skagit 53057
- Skamania 53059
- Snohomish 53061
- Thurston 53067
- Wahkiakum 53069
- Walla Walla 53071
- Whatcom 53073
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/EQTE ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2687943 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z