Comptonia, also known as sweet fern, is a type of aromatic shrub that is native to North America. While the word "comptonia" is the most common name for this plant, there are several other synonyms that can be used. One of these is Myrica asplenifolia, which refers to a similar species of sweet fern that is found in the southeastern United States. Other synonyms include Comptonia peregrina, which is the scientific name for the plant, and the common name fern bush. Additionally, some people may simply refer to the plant as sweet boughs, due to its fragrant aroma and the fact that its branches are often used in decorative arrangements.