Berberis canadensis is a shrub native to Canada and the northeastern United States. It is commonly known as American barberry or wild barberry. However, there are also other synonyms for this plant, including Berberis augustifolia, Berberis volubilis, and Berberis vulgaris. The plant is known for its yellow flowers and edible berries, which can be used in jams and jellies. Additionally, the roots and bark of the plant have medicinal properties and have been used to treat ailments such as diarrhea and fever. Despite its benefits, the plant can also be invasive, so it should be planted with caution.