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
| 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 |