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Masticophis flagellum (Shaw, 1802) - Eastern Coachwhip

Maps

Locality Map

Locality map for Masticophis flagellum (Eastern Coachwhip)
Locality map for Masticophis flagellum (Eastern Coachwhip).
Map created 15 April 2026.

County Map

County map for Masticophis flagellum (Eastern Coachwhip)
County map for Masticophis flagellum (Eastern Coachwhip).
Map created 15 April 2026.

Historical Locality Map

Historical locality map for Masticophis flagellum (Eastern Coachwhip)
Historical locality map for Masticophis flagellum (Eastern Coachwhip). 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 Masticophis flagellum (Eastern Coachwhip)
Historical county map for Masticophis flagellum (Eastern Coachwhip). 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 Masticophis flagellum (Eastern Coachwhip)
Ecological Drainage Units locality map for Masticophis flagellum (Eastern Coachwhip).
Map created 15 April 2026.

Natural Divisions Locality Map

Natural Divisions locality map for Masticophis flagellum (Eastern Coachwhip)
Natural Divisions and Sections locality map for Masticophis flagellum (Eastern Coachwhip).
Map created 15 April 2026.

Major Watersheds Locality Map

Major watersheds map for Masticophis flagellum (Eastern Coachwhip)
Major Watersheds locality map for Masticophis flagellum (Eastern Coachwhip).
Map created 15 April 2026.

Level I Ecoregion Locality Map

Level I Ecoregions map for Masticophis flagellum (Eastern Coachwhip)
Level I Ecoregion locality map for Masticophis flagellum (Eastern Coachwhip).
Map created 15 April 2026.

Level II Ecoregion Locality Map

Level II Ecoregions map for Masticophis flagellum (Eastern Coachwhip)
Level II Ecoregion locality map for Masticophis flagellum (Eastern Coachwhip).
Map created 15 April 2026.

Level III Ecoregion Locality Map

Level III Ecoregions map for Masticophis flagellum (Eastern Coachwhip)
Level III Ecoregion locality map for Masticophis flagellum (Eastern Coachwhip).
Map created 15 April 2026.

Level IV Ecoregion Locality Map

Level IV Ecoregions map for Masticophis flagellum (Eastern Coachwhip)
Level IV Ecoregion locality map for Masticophis flagellum (Eastern Coachwhip).
Map created 15 April 2026.

Native Status

Masticophis flagellum (Eastern Coachwhip) is native to Missouri.

Collection Summary

Masticophis flagellum (Eastern Coachwhip) has a total of 167 valid, non-duplicated collections representing 51 counties and 145 localities. There are a total of 75 collectors and 125 collection dates for the species. This results in a total of 132 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1896 and its most recent collection year is 2023. The earliest and latest collection dates (independent of earliest and most recent collection years) are January 4 and October 30, respectively. If you have a new record to report, read the New Records section of the FAQ.

Collection Summary by County

Collection summary for Masticophis flagellum (Eastern Coachwhip) 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
Barry 7 9 7 7 8 1939 2006
Barton 1 1 1 1 1 1968 1968
Bates 1 1 1 1 1 1958 1958
Benton 4 5 5 4 4 1930 2007
Boone 1 1 1 1 1 1982 1982
Camden 2 2 3 2 2 2008 2008
Carter 3 4 4 4 4 1930 1934
Cedar 2 2 5 2 2 1990 2007
Christian 1 1 1 1 1 1967 1967
Cole 1 1 1 1 1 1998 1998
Crawford 1 1 1 1 1 1937 1937
Dade 4 4 3 4 4 1999 2015
Dallas 1 1 2 1 1 1992 1992
Dent 1 1 1 1 1 1909 1909
Douglas 1 1 1 1 1 1983 1983
Franklin 1 1 1 1 1 1946 1946
Greene 11 12 7 10 10 1959 2023
Henry 3 3 2 2 3 1972 1976
Hickory 4 4 5 4 4 1950 2010
Jackson 3 3 2 2 2 1937 1937
Jasper 1 1 1 1 1 2004 2004
Jefferson 6 8 5 6 6 1896 2016
Johnson 1 1 1 1 1 1976 1976
Laclede 1 2 2 2 2 1941 1964
Lawrence 1 1 1 1 1 2004 2004
Madison 1 1 1 1 1 1976 1976
Maries 1 1 1 1 1 1966 1966
McDonald 2 2 2 2 2 1968 1968
Miller 2 2 5 2 2 1991 2006
Moniteau 2 2 3 2 2 1996 2005
Montgomery 1 1 1 1 1 2009 2009
Morgan 3 3 3 2 3 1966 1966
Newton 1 1 1 1 1 1958 1958
Oregon 5 6 6 6 6 1901 2001
Osage 2 2 1 1 1
Ozark 6 7 9 7 7 1902 2008
Phelps 3 4 3 3 3 1933 1945
Polk 5 5 4 4 5 2008 2019
Pulaski 3 3 3 3 3 1933 2004
Reynolds 1 1 1 1 1 1939 1939
Saint Clair 16 21 14 17 18 1936 2008
Sainte Genevieve 1 1 1 1 1 2014 2014
Shannon 4 4 4 4 4 1941 1963
Stone 2 6 5 4 4 1906 1966
Taney 6 6 9 6 6 1948 2002
Texas 2 2 2 2 2 1976 2004
Vernon 1 1 1 1 1
Washington 3 3 2 3 3 1909 2014
Wayne 5 7 7 6 7 1906 1946
Webster 1 1 1 1 1 1959 1959
Wright 1 1 1 1 1 2004 2004

Potential County Records

Potential counties for Masticophis flagellum (Eastern Coachwhip). 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 Butler Same Level IV ecoregion, within 5 miles Current River Hills
2 Callaway Same Level IV ecoregion, within 5 miles Claypan Prairie
2 Clay Same Level IV ecoregion, within 5 miles Missouri Alluvial Plain
2 Cooper Same Level IV ecoregion, within 5 miles River Hills
2 Iron Same Level IV ecoregion, within 5 miles St. Francois Knobs and Basins
2 Platte Same Level IV ecoregion, within 5 miles Missouri Alluvial Plain
2 Ripley Same Level IV ecoregion, within 5 miles Central Plateau
2 Saint Francois Same Level IV ecoregion, within 5 miles St. Francois Knobs and Basins
2 Saint Francois Same Level IV ecoregion, within 5 miles Eastern Ozark Border
2 Saint Francois Same Level IV ecoregion, within 5 miles Meramec River Hills
2 Saint Louis Same Level IV ecoregion, within 5 miles Eastern Ozark Border
2 Warren Same Level IV ecoregion, within 5 miles River Hills
4 Bollinger Same Level IV ecoregion, within 10 miles St. Francois Knobs and Basins
4 Cass Same Level IV ecoregion, within 10 miles Wooded Osage Plains
4 Howell Same Level IV ecoregion, within 10 miles Current River Hills
4 Howell Same Level IV ecoregion, within 10 miles Central Plateau
4 Howell Same Level IV ecoregion, within 10 miles White River Hills
4 Ray Same Level IV ecoregion, within 10 miles Missouri Alluvial Plain
5 Perry Same Level III ecoregion, within 10 miles Ozark Highlands
6 Audrain Same Level IV ecoregion, within 20 miles River Hills
6 Audrain Same Level IV ecoregion, within 20 miles Claypan Prairie
6 Gasconade Same Level IV ecoregion, within 20 miles Central Plateau
6 Gasconade Same Level IV ecoregion, within 20 miles River Hills
6 Howard Same Level IV ecoregion, within 20 miles Claypan Prairie
6 Howard Same Level IV ecoregion, within 20 miles River Hills
6 Lafayette Same Level IV ecoregion, within 20 miles Missouri Alluvial Plain
6 Lafayette Same Level IV ecoregion, within 20 miles Wooded Osage Plains
6 Lincoln Same Level IV ecoregion, within 20 miles River Hills
6 Pettis Same Level IV ecoregion, within 20 miles Cherokee Plains
6 Pettis Same Level IV ecoregion, within 20 miles Wooded Osage Plains
6 Saline Same Level IV ecoregion, within 20 miles Wooded Osage Plains
7 Clinton Same Level III ecoregion, within 20 miles Western Corn Belt Plains
7 Stoddard Same Level III ecoregion, within 20 miles Ozark Highlands
8 Buchanan Same Level IV ecoregion, within 30 miles Missouri Alluvial Plain
8 Carroll Same Level IV ecoregion, within 30 miles Missouri Alluvial Plain
8 Pike Same Level IV ecoregion, within 30 miles River Hills
8 Randolph Same Level IV ecoregion, within 30 miles Claypan Prairie
8 Saint Charles Same Level IV ecoregion, within 30 miles River Hills
9 Cape Girardeau Same Level III ecoregion, within 30 miles Ozark Highlands

Linnaean Classification

Kingdom:
Animalia - Animals
Phylum:
Chordata - Chordates
Subphylum:
Vertebrata - Vertebrates
Class:
Reptilia Laurenti, 1768 - Reptiles
Order:
Squamata Oppel, 1811 - Lizards and Snakes
Family:
Colubridae Oppel, 1811 - Harmless Egg-laying Snakes
Genus:
Masticophis Baird and Girard, 1853 - Whipsnakes
Species:
Masticophis flagellum (Shaw, 1802) - Eastern Coachwhip

Recent Taxonomic Synonyms