The Sandbox tree is an evergreen native to tropical regions of the Americas, including the Amazon Rainforest. It’s best known by it's dark, pointed spines and smooth brown bark.
The spines act as a natural defense mechanism against animals, and it’s actually known as Monkey no-climb by some people. The trees, which can also grow up to 60m high, also has some interesting fruit.
The Sandbox’s fruit is a large capsule that can explode and launch seeds at 70 meters per second. Some really ripe pods can send the seed up to 100 meters away from the tree. It makes a very distinct explosive sound, which leads to another nickname for this tree: The Dynamite tree.
As if all that wasn’t defense enough, the sap of the tree is also poisonous. So much so, that fishermen use it to poison fish and Caribs even make arrow poison from the sap.