A rattlesnake.
It is mostly the rattlesnake.
The name of a poisonous snake with three letters is the adder.
The 3-letter poisonous snake is almost always "asp."
a snake
rattle snake
Rattle snake
corbra
western rattle snake
Most poisonous snake have fang.
No, the black rat snake is not poisonous.
snake, ivy and mushrooms