Some of these pictures and descriptions may give away plot details that you might not want to know before watching the film.
This is an English horror movie with a bit of jungle adventure in it, a mad scientist, and a tree that eats women. (Why only women? Ask the tree. Or better yet, ask the misogynistic filmmakers and audience of that era who liked to be titillated by violence against young female flesh.)
A mad scientist goes to the Amazon where he finds the savages offering a virgin sacrifice to a big hairy tree with lots of arms. Men are playing drums and standing around watching a woman in a trance. A man with a painted face and a feathered headdress is dancing around with a snake in each hand - a Boa Constrictor in the left hand and a Burmese Python in the right hand - as men lead the woman to the hungry tree. The scientist somehow steals the tree and brings it back to England where he feeds it young women to make it produce a liquid that he can experiment with in his lab to bring the dead back to life.
The snakes we see are both real and alive, as far as I can tell. The boa is a native of the Amazon region, but the python is from far away Asia.