Black Locust
The black locust (Robinia pseudoacacia) is a fast-growing deciduous tree native to the southeastern United States, known for its fragrant white flowers and thorny bark. Its wood is extremely durable and resistant to rot, making it popular for fence posts, decking, and outdoor furniture. While valued for its soil-enriching nitrogen-fixing ability, black locust can spread aggressively and is considered invasive in some regions.