Glossopetalon

Glossopetalon is a small genus of shrubs in the plant family Crossosomataceae. These plants are sometimes called greasebushes. They are native to the western United States and northern Mexico, where they can be found on dry mountain slopes. These are small shrubs with thorny, tangling branches and white flowers. It continues to be the subject of a dispute about whether its proper name is Forsellesia or "Glossopetalon".
Species include: