Black Locust (Robinia Pseudoacacia), is also known as false acacia, or Chinese teak (due to its resemblance to teak). Black Locust is the strongest and most rot resistant wood indigenous to the United States and because of this, it makes an incredibly resilient and durable decking material that will remain beautiful and withstand years of outdoor exposure. Building with Black Locust is also a sound environmental choice. Black Locust grows faster than any other known hardwood tree. Unlike Brazilian hardwoods, Black Locust can greatly ease the demand on tropical forests.