What kind of tree is green and covered in sharp, pointy spikes

What Are Some of the Trees That Have Spikes on Them? Whoah!

Which tree is named as the tree of death? - Quora

What is the name of the tree with red spiky flowers I see growing alongside many roads? - Quora

Rainforest tree thorns hi-res stock photography and images - Alamy

23 of the Best Defensive Plants for Home Security

What are those large trees with sharp spikes called, seen in the 2011 film 'Red Riding Hood?' - Quora

How to identify trees in winter - Quora

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There is a fruitful tree with red leaves and dark-red wood color. What is the name of such a tree (see the picture in the attachment)? - Quora

What are some flowering trees that bloom red instead of pink like cherry blossoms do (or white or yellow)? What kind of tree is it called and where can we find them