Florida Cottonmouth

Scientific Name
Agkistrodon conanti
Also Known As
Green-tailed Moccasin
All of Florida
Fish, Frogs, Turtles, Small Mammals
Life Expectancy
15 - 20 Years
The Florida Cottonmouth

Photo 14614705 © Saunders Drukker, CC BY-NC

Florida Cottonmouth conservation status - Not Threatened

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This Snake is Venomous

The Florida Cottonmouth in Central Florida

The Florida cottonmouth (Agkistrodon conanti) is a venomous pit viper subspecies found throughout central Florida. Often feared due to its defensive nature, cottonmouths play an important role in balancing local ecosystems.

This comprehensive guide provides identification tips, biology facts, behavior, ideal habitat conditions, diet, health risks, and prevention methods for cottonmouths in central Florida.

Appearance and Identification

The Florida Cottonmouth can be identified by the following characteristics

Adult Florida Cottonmouth

Photo 162295747 © Kaylyn Cullen, CC BY-NC

Adult Florida Cottonmouths

  • Size: Adult cottonmouths average 36 to 48 inches (91 to 122 cm) long. Large specimens may exceed 5 feet (1.5 m).
  • Color: Adults exhibit a solid, uniformly olive, brownish-black, or black color. The dark bands fade but outlines may be visible.
  • Head: Triangular head distinct from the neck. Dark postocular stripe present.

  • Eyes: Eyes are positioned on the side of the head giving good binocular vision.
Juvenile Florida Cottonmouth

Photo 184170079 © flashberry, CC BY-NC

Juvenile Florida Cottonmouths

  • Size: Newborn cottonmouths average 8 to 10 inches (20 to 25 cm) long. By their first year they reach around 18 inches (46 cm).
  • Color: Juve