Workers at Firestone's rubber farm in Liberia say that extracting natural rubber comes with a high human cost.

With its large and lush, deep-green, leathery leaves, the rubber tree plant (Ficus elastica) is one of the most popular ...

Rubber tree plants are also known for their large, oval-shaped dark green leaves. New leaves are protected by sheaths and emerge at the top of the stem. Although mainly grown as houseplants ...