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Nerodia floridana
No medically significant venom known
Nerodia floridana (Florida Green Watersnake) is a nonvenomous, heavy-bodied natricine snake native to the southeastern United States. It is semi-aquatic, often found in or near freshwater bodies where it preys on fish and amphibians. Defensive when threatened; will flee into water, flatten its body, strike, and release musk or feces.
Lampropeltis floridana
No medically significant venom known
A nonvenomous colubrid native to the southeastern United States, the Florida kingsnake (Lampropeltis floridana) is a medium-length constrictor that preys on rodents, reptiles and eggs. Often found near wetlands, pine flatwoods, and human-modified areas, it helps control pest populations. It may mimic venomous species in pattern but is not known to possess medically significant venom.
Contia longicauda
No medically significant venom known
Small, secretive, non-venomous natricine snake native to moist coniferous and mixed forests of the Pacific Northwest and adjacent regions. Primarily fossorial and nocturnal; feeds on slugs and small invertebrates. Rarely encountered due to secretive habits.
Juvenile venomous snakes can deliver medically significant bites, but the common claim that they are automatically more dangerous because they cannot control venom delivery is not supported as a general rule. Adult snakes usually have larger venom glands and can deliver a larger total amount.
Bottom line: Treat every suspected venomous snakebite as a medical emergency, regardless of the snake’s age.
Head shape alone is unreliable. Many nonvenomous snakes flatten or widen the head defensively, and viewing angle can change the apparent shape.
Bottom line: Do not approach a snake to inspect its head. Use multiple traits, location, and a safe-distance photograph.
Tourniquets can worsen tissue injury and are not recommended for typical United States snakebites. Emergency evaluation is more important.
Bottom line: Call 911 or Poison Control at 1-800-222-1222. Keep the person calm and do not cut, suck, ice, or tourniquet the bite.
Young copperheads can have a contrasting yellow or greenish tail tip used in caudal luring. It is soft and tapered, not a segmented rattle. The bright color usually fades with age.
Bottom line: Never move closer to inspect the tail. The feature is a clue, not permission to approach or handle the snake.
Several non-rattlesnake species vibrate their tails when threatened. Dry leaves can make the sound resemble a rattle.
Bottom line: A defensive tail vibration does not identify the species. Keep your distance.