Genus Fremontia, also known as the flannelbush, is a group of plants that belong to the family of trees and shrubs. There are a number of synonyms that can be used to describe this genus, which is native to California and Mexico. Some of the common synonyms for Fremontia are Chiranthofremontia, Fremontodendron, and Xylomelum. These terms reflect the various characteristics of the plants within this group, including their beautiful yellow flowers, their flannel-like leaves, and their ability to thrive in arid conditions. Regardless of the term used, Fremontia plants are a beloved part of many gardens and landscapes, particularly in their native regions.