Genus Fremontodendron, commonly known as flannel bush or prostrate flannel bush, is a flowering shrub found in North America. It belongs to the family Malvaceae and has bright yellow flowers that bloom in spring. There are several synonyms for this species, including Fremontia, Fremontia californica, Fremontia mexicana, and Fremontodendron californicum. These names refer to the same plant, but some may be outdated or used regionally. Despite the different names, the characteristics, distribution, and uses of Genus Fremontodendron remain the same. It is a popular landscaping plant due to its striking yellow flowers and drought tolerance. Additionally, Native American tribes historically used flannel bush for its medicinal properties.