Genus Larrea, also known as Larrea tridentata or creosote bush, is a plant species that grows in the arid regions of North America. It is well known for its medicinal properties and has been used by indigenous communities for centuries. Over time, various synonyms have been used to refer to this species, including chapparal, greasewood, and palo blanco. These synonyms reflect the plant's distinctive characteristics, such as its woody structure, aromatic smell, and yellow flowers. Despite its various names, Genus Larrea remains an important plant species in the region and is widely used for its medicinal, ecological, and cultural values.