You're probably thinking about the Eastern Hognose Snake(s) which are common in Maryland along with other dangerous snakes. However this one is not venomous.
CommonIf you are experiencing a problem with snakes or other "problem animals"
and you don't know what to do, call the Nuisance Animal Hotline at 1-877-463-6497.
king cobra
Are you saying that the snake has like a "hood" around the head? If so, that is a cobra.
The snake with a hood behind its head is the cobra. This hood can expand when the cobra feels threatened or is about to strike, displaying its distinctive markings and warning potential threats.
His head
The spotted bush snake, also known as the African twig snake, is known to mimic the aggressive hooding behavior of a cobra when threatened. It flattens its neck and raises its head to resemble a cobra in an attempt to deter predators.
the king cobra or any other snake have 2 body parts the head and its rest
the rat
The Nemes Headdress resembles the head of a Cobra snake.
king cobra
You get a test tube and put a piece of cloth on the top.You hold the back of the cobra's head and it bites down on the cloth part of the tube.
The Cobra snake has some identifying features like stretching its head high up ready to attack, it has a V mark at the back of its head and the neck become wide. Some people of India are playing the flutes and they rise up somehow dancing to the music.
The king cobra and you wouldn't want to be near one of those because of it's venom