Timber rattlesnake
At Zollman Zoo
Conservation status
Least Concern (IUCN 3.1)
Scientific classification
Unrecognized taxon (fix):	Reptilia
Order:	Squamata
Family:	Viperidae
Genus:	Crotalus
Species:	C. horridus
Binomial name
Crotalus horridus Linnaeus, 1758
Timber rattlesnake range
Synonyms
Crotalus horridus Linnaeus, 1758 Crotalus boiquira Lacépède, 1789 Crotalus atricaudatus Latreille In Sonnini & Latreille, 1801 Crotalus zetazomae Brickell, 1805 Crotalinus cyanurus Rafinesque, 1818 Crotalus catesbaei Hemprich, 1820 Crotalurus cyanurus – Rafinesque, 1820 Caudisona horrida – Fleming, 1822 Crotalus horidus Gray, 1825 (ex errore) Crotalus durissus var. concolor Jan, 1859 Crotalus durissus var. melanurus Jan, 1859 Crotalus durissus var. mexicana Jan, 1863 Crotalus fasciatus Higgins, 1873 Crotalus horridus var. atricaudatus – Garman, 1884 Crotalus horridus – Boulenger, 1896 Crotalus durissus cincolor Notestein, 1905 (ex errore) Crotalus horridus horridus – Gloyd, 1935 Crotalus horridus atricaudatus – Gloyd, 1935 Crotalus horridus – Collins & Knight, 1980

The timber rattlesnake (Crotalus horridus) is a species of venomous Pit vipers. It lives in eastern United States of America. There are no subspecies currently recognized. It is the 2nd largest venomous snake found in the eastern United States.