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Crotalus horridus Linnaeus, 1758 - Timber Rattlesnake


Collection Summary

Crotalus horridus (Timber Rattlesnake) has a total of 376 valid, non-duplicated collections representing 74 counties and 204 localities. There are a total of 98 collectors and 165 collection dates for the species. This results in a total of 176 expeditions for the species, a measure of unique date / collector(s) combinations. The earliest collection year for the species in Missouri is 1898 and its most recent collection year is 2020. The earliest and latest collection dates (independent of earliest and most recent collection years) are February 14 and November 20, respectively. If you have a new record to report, read the New Records section of the FAQ.

Collection Summary by County

Collection summary for Crotalus horridus (Timber Rattlesnake) 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 2 2 2 2 1959 1965
Andrew 1 1 2 1 1 1992 1992
Barry 1 1 1 1 1 2003 2003
Barton 1 2 1 2 2 1900 1900
Bates 2 4 1 2 2 1958 1958
Benton 1 1 1 1 1 2015 2015
Bollinger 1 1 1 1 1
Boone 13 15 12 13 14 1934 2014
Buchanan 1 1 1 1 1
Butler 1 1 3 1 1 2007 2007
Caldwell 3 10 1 3 3 1954 1954
Callaway 2 2 2 2 2 1999 1999
Cape Girardeau 3 3 3 2 3 1972 1995
Carroll 1 2 1 2 2 1961 1961
Carter 1 2 3 2 2 1931 1931
Cass 1 3 1 2 2 1942 1942
Chariton 1 1 1 1 1 1940 1940
Christian 4 4 1 3 3 2011 2013
Clark 1 1 1 1 1
Clay 5 10 2 4 4 1939 1958
Clinton 1 1 1 1 1
Cooper 1 1 1 1 1 2017 2017
Dade 1 1 1 1 1 2018 2018
Dallas 1 1 1 1 1 2007 2007
Daviess 2 2 4 2 2 2014 2014
Dent 1 1 2 1 1 1997 1997
Dunklin 1 1 1 1 1 1900 1900
Gentry 4 4 2 4 4 2000 2003
Grundy 5 6 3 3 3 1964 2006
Harrison 1 1 1 1 1 2006 2006
Henry 2 2 1 1 1
Hickory 1 1 1 1 1 2005 2005
Holt 9 13 3 9 10 1959 1974
Howard 1 1 1 1 1
Howell 1 1 1 1 1 1909 1909
Iron 1 1 2 1 1 2009 2009
Jackson 30 82 6 32 32 1929 2003
Jefferson 4 6 3 3 3 1898 2009
Johnson 6 9 3 6 6 1909 1991
Laclede 1 1 1 1 1 2002 2002
Lafayette 1 2 1 2 2 1939 1939
Lincoln 1 1 1 1 1 2016 2016
Livingston 2 2 2 2 2 1940 2020
Madison 1 2 5 1 2 2007 2007
Mercer 1 1 2 1 1 2018 2018
Moniteau 1 1 1 1 1 2012 2012
Monroe 2 2 4 2 2 2001 2017
Montgomery 3 3 4 3 3 1995 2015
Morgan 1 1 1 1 1 1948 1948
Osage 2 2 2 2 2 1996 2006
Perry 1 1 4 1 1 2008 2008
Pettis 7 11 5 7 8 1939 1976
Pike 6 18 2 4 5 1938 1939
Platte 5 7 1 2 2 1948 1948
Ralls 2 2 2 2 2 1979 2012
Ray 5 59 5 9 9 1951 2020
Reynolds 1 1 2 1 1 2008 2008
Ripley 1 1 2 1 1 2013 2013
Saint Charles 1 1 1 1 1 2003 2003
Saint Clair 1 1 1 1 1 2005 2005
Sainte Genevieve 1 1 1 1 1 1902 1902
Saint Francois 1 1 1 1 1 2019 2019
Saint Louis 7 8 4 3 5 1907 2009
Saline 2 3 1 2 2 1940 1940
Schuyler 1 1 1 1 1 2009 2009
Scott 2 4 1 2 2 1985 1985
Shannon 3 3 3 3 3 1992 2011
Stoddard 3 11 4 8 8 1935 1969
Stone 2 3 2 2 2 1908 1908
Sullivan 3 3 3 3 3 2008 2012
Taney 1 1 1 1 1 2000 2000
Warren 2 2 2 2 2 1993 2020
Washington 2 2 2 2 2 2003 2003
Wayne 8 9 11 7 7 1956 2015