Robinia pseudoacacia, commonly known as black locust, is a hardwood deciduous tree, belonging to the legume family Fabaceae. The tree is indigenous to the US where Native Americans used its wood to create bows and tools. The bark also has many health benefits and can be used to treat respiratory illnesses. The herb can be used to treat asthma and suppress cough. The herb can be used to improve skin health when applied topically as it can be an effective moisturizer.