Name this obviously venonmous snake...?

Question

In the Hot Springs, Arkansas area. The snake was coiled, a fairly bright green, very thick body, about 24" long, and an extremely triangular head that had some small black spots near its nostrils.

It was in a woods, at the edge of a golf course. There can be no doubt that the snake was venomous due to the very pronounced, and bulging glands at the back of his head, making his head quite triangular.

I've looked everywhere, but the only thing I can think of is a variant of a water moccasin, since it was near a very boggy area.

It had absolutely no bands, or other body markings, which is what threw me at first, till I noted the head. Then I was really confused!

He took off before I could take a picture.

Answer 1

None of the venomous snakes native to Arkansas are bright green.

Several of the non-venomous water snakes can be slightly green. They have large heads, and are frequently mistaken for water moccasins.

Eastern hognose is another non-venomous possibility.

Here are some photos of native snakes, perhaps this will help:

http://www.snakesofarkansas.com/Main/Sna...

Answer 2

I'm not familiar with a bright green venomous snake in Arkansas without any markings at all.  Are you certain it wasn't a harmless rough green snake?  Pronounced triangular heads are not completely accurate.  Here's a website where you might find the answer.

http://www.snakesofarkansas.com/Main/Sna...

Answer 3

I believe it is a Pit Viper.