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Anaxyrus americanus (Holbrook, 1836) - American Toad

Maps

Locality Map

Locality map for Anaxyrus americanus (American Toad)
Locality map for Anaxyrus americanus (American Toad).
Map created 15 April 2026.

County Map

County map for Anaxyrus americanus (American Toad)
County map for Anaxyrus americanus (American Toad).
Map created 15 April 2026.

Historical Locality Map

Historical locality map for Anaxyrus americanus (American Toad)
Historical locality map for Anaxyrus americanus (American Toad). Black circles ( ) represent records after 1986, blue squares ( ) represent records between 1966 and 1986, orange triangles ( ) represent records prior to 1966. Note that more recent records might conceal underlying older records.
Map created 15 April 2026.

Historical County Map

Historical county map for Anaxyrus americanus (American Toad)
Historical county map for Anaxyrus americanus (American Toad). Black circles ( ) represent records after 1986, blue squares ( ) represent records between 1966 and 1986, orange triangles ( ) represent records prior to 1966. Note that only the most recent county record for each county is shown.
Map created 15 April 2026.

Ecological Drainage Locality Map

Ecological Drainage Units map for Anaxyrus americanus (American Toad)
Ecological Drainage Units locality map for Anaxyrus americanus (American Toad).
Map created 15 April 2026.

Natural Divisions Locality Map

Natural Divisions locality map for Anaxyrus americanus (American Toad)
Natural Divisions and Sections locality map for Anaxyrus americanus (American Toad).
Map created 15 April 2026.

Major Watersheds Locality Map

Major watersheds map for Anaxyrus americanus (American Toad)
Major Watersheds locality map for Anaxyrus americanus (American Toad).
Map created 15 April 2026.

Level I Ecoregion Locality Map

Level I Ecoregions map for Anaxyrus americanus (American Toad)
Level I Ecoregion locality map for Anaxyrus americanus (American Toad).
Map created 15 April 2026.

Level II Ecoregion Locality Map

Level II Ecoregions map for Anaxyrus americanus (American Toad)
Level II Ecoregion locality map for Anaxyrus americanus (American Toad).
Map created 15 April 2026.

Level III Ecoregion Locality Map

Level III Ecoregions map for Anaxyrus americanus (American Toad)
Level III Ecoregion locality map for Anaxyrus americanus (American Toad).
Map created 15 April 2026.

Level IV Ecoregion Locality Map

Level IV Ecoregions map for Anaxyrus americanus (American Toad)
Level IV Ecoregion locality map for Anaxyrus americanus (American Toad).
Map created 15 April 2026.

Native Status

Anaxyrus americanus (American Toad) is native to Missouri.

Collection Summary

Anaxyrus americanus (American Toad) has a total of 700 valid, non-duplicated collections representing 110 counties and 424 localities. There are a total of 201 collectors and 397 collection dates for the species. This results in a total of 431 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1886 and its most recent collection year is 2025. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 6 and November 12, respectively. If you have a new record to report, read the New Records section of the FAQ.

Collection Summary by County

Collection summary for Anaxyrus americanus (American Toad) by county. Some values are unavailable since some records are represented solely by historical literature reports, which sometimes lack complete collecting data. Click on a county name to view more information about that county. Click on column headings to sort by that column.
County Localities Collections Collectors Dates Expeditions Earliest Year Latest Year
Adair 1 1 1 1 1 2017 2017
Andrew 2 3 2 3 3 1967 1982
Atchison 2 2 2 2 2 1962 1992
Audrain 2 2 2 2 2 1997 2020
Barry 10 17 16 13 13 1930 2004
Barton 4 4 3 4 4 1990 2017
Bates 2 2 1 1 1 1950 1950
Benton 4 10 4 4 4 1959 1997
Bollinger 3 3 3 3 3 1967 1987
Boone 15 53 8 18 21 1911 2005
Buchanan 1 1 1 1 1 1986 1986
Butler 7 15 6 8 8 1898 1994
Caldwell 1 1 1 1 1 2003 2003
Callaway 6 8 3 4 4 1975 1998
Camden 5 5 3 5 5 1937 1978
Cape Girardeau 2 2 1 2 2 2007 2007
Carter 7 7 8 6 7 1931 2003
Cass 2 2 1 2 2 1964 1965
Cedar 2 4 6 2 2 1962 1998
Chariton 2 3 3 3 3 1938 1941
Christian 7 7 8 6 6 1963 2013
Clark 1 2 1 1 1 1990 1990
Clay 9 12 8 9 10 1958 1967
Clinton 1 1 1 1 1 1958 1958
Cole 6 6 6 6 6 2008 2020
Crawford 5 5 5 5 5 1903 2010
Dade 4 4 2 4 4 1982 2018
Dallas 2 2 4 2 2 2014 2014
Daviess 1 1 1 1 1
Dent 2 2 2 2 2 1909 1964
Douglas 1 1 3 1 1 2003 2003
Dunklin 4 4 3 4 4 1904 1958
Franklin 1 1 1 1 1 1971 1971
Gasconade 1 1 2 1 1 2009 2009
Gentry 1 1 3 1 1 1992 1992
Greene 21 23 8 21 21 1959 2023
Grundy 3 3 6 3 3 1964 2010
Harrison 2 2 2 2 2 1993 1993
Henry 2 6 1 2 2 1938 1938
Hickory 3 3 7 3 3 1978 1998
Holt 1 1 1 1 1 1969 1969
Howard 2 3 4 2 2 2001 2009
Howell 1 1 1 1 1 1973 1973
Iron 6 8 10 7 7 1950 2020
Jackson 36 132 6 43 44 1908 1978
Jasper 5 7 7 7 7 1899 2013
Jefferson 12 12 12 6 6 1969 2015
Johnson 10 20 12 15 15 1908 1993
Knox 1 1 1 1 1 1994 1994
Laclede 2 3 4 2 3 1964 2000
Lafayette 2 3 1 2 2 1962 1962
Lawrence 2 2 2 2 2 1958 2009
Lewis 1 1 1 1 1 1996 1996
Lincoln 3 6 3 5 5 1964 2013
Linn 3 3 3 3 3 1963 1982
Livingston 1 1 1 1 1 1982 1982
Macon 5 5 5 5 5 1992 2021
Madison 6 8 9 7 7 1935 2007
Maries 2 2 2 2 2 1967 1982
Marion 2 2 2 2 2 1947 2025
McDonald 7 9 8 7 7 1906 2009
Mercer 3 5 3 3 3 1938 1983
Miller 4 4 4 4 4 1938 1972
Mississippi 3 5 3 3 3 1962 1988
Moniteau 2 2 3 2 2 1991 1992
Monroe 2 2 2 2 2 2008 2020
Montgomery 1 1 1 1 1 1905 1905
Morgan 2 2 2 2 2 1969 1969
New Madrid 1 1 1 1 1 1986 1986
Newton 6 13 9 8 8 1924 2018
Nodaway 2 2 1 1 1 1976 1976
Oregon 4 8 6 4 4 1900 1953
Osage 1 1 3 1 1 2006 2006
Ozark 5 9 6 6 6 1902 1997
Perry 2 2 3 2 2 1994 1995
Pettis 3 4 3 3 3 1982 1991
Phelps 3 3 5 2 2 1978 2021
Pike 4 6 4 3 5 1971 1995
Platte 1 2 1 1 1 1941 1941
Polk 4 4 2 3 3 1982 2016
Pulaski 3 3 4 3 3 1929 1998
Putnam 3 3 3 3 3 1985 2015
Ralls 3 5 4 2 4 1971 1997
Randolph 5 9 2 4 4 2001 2020
Ray 2 9 2 2 2 1956 1970
Reynolds 1 1 1 1 1 1963 1963
Ripley 3 4 3 3 3 1984 2007
Saint Charles 2 2 2 2 2 1940 1981
Saint Clair 6 10 2 6 6 1938 2007
Sainte Genevieve 3 3 3 3 3 1956 1994
Saint Francois 2 2 2 2 2 1929 2007
Saint Louis 4 10 5 6 7 1886 2020
Saline 1 1 1 1 1 2019 2019
Schuyler 1 3 1 1 1 1986 1986
Scotland 2 2 4 2 2 1985 2021
Scott 2 2 4 2 2 2007 2015
Shannon 7 8 12 6 6 1941 2017
Shelby 2 2 2 2 2 1992 1998
Stoddard 6 21 12 11 11 1929 2009
Stone 4 5 5 5 5 1892 1966
Sullivan 2 3 1 3 3 2005 2012
Taney 8 9 5 7 8 1906 2020
Texas 4 4 9 4 4 1900 2003
Vernon 3 3 4 3 3 1938 2015
Warren 1 1 1 1 1 1999 1999
Washington 2 2 2 2 2 1909 1971
Wayne 9 16 15 12 12 1935 2010
Webster 6 8 5 5 5 1959 2024
Worth 3 3 4 3 3 1982 1992
Wright 1 1 1 1 1 1932 1932

Potential County Records

Potential counties for Anaxyrus americanus (American Toad). Counties are listed in descending order of their likelihood of having this species. Click on a county to view more information about that county. Click on column headings to sort by that column.
Likelihood County Rationale Ecoregion / Watershed
2 Carroll Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
2 Carroll Same Level IV ecoregion, within 5 miles Rolling Loess Prairies
2 Cooper Same Level IV ecoregion, within 5 miles River Hills
2 De Kalb Same Level IV ecoregion, within 5 miles Loess Flats and Till Plains
4 Pemiscot Same Level IV ecoregion, within 10 miles St. Francis Lowlands

Linnaean Classification

Kingdom:
Animalia - Animals
Phylum:
Chordata - Chordates
Subphylum:
Vertebrata - Vertebrates
Class:
Amphibia Gray, 1825 - Amphibians
Order:
Anura Fischer von Waldheim, 1813 - Frogs
Family:
Bufonidae Gray, 1825 - True Toads
Genus:
Anaxyrus Tschudi, 1845 - North American Toads
Species:
Anaxyrus americanus (Holbrook, 1836) - American Toad

Recent Taxonomic Synonyms