Sneezeweed yarrow, also known as yellow sneezeweed, is a species of herbaceous perennial plant that belongs to the sunflower family. It is native to North America and blooms with yellow and orange flowers during summer and fall. In some regions, it is considered a weed due to its fast-spreading nature. There are several synonyms for the term sneezeweed yarrow, including bitterweed, narrow-leaved sneezeweed, swamp sunflower, and yellow top. These synonyms are often used interchangeably, depending on the region and context. Regardless of its name, sneezeweed yarrow is a beautiful addition to any garden or landscape, attracting butterflies and other pollinators.