Brazil
Brazil is famous as the home of the Amazon rainforest, and trees played a big part in the naming of this South American nation too. The country is absolutely filled with one particular kind of tree called the Pau-Brasil.
Source: g1.globo.com
A slimy red sap oozes out of these trees regularly and is used as a dye in food and clothing. The name of this tree comes from the Portuguese words ‘pau’ meaning tree and ‘Brasil’ meaning ember, due to the color of the sap. Portugal colonized Brazil, so decided to name it after the trees.