Downy ash, also known as Soft ash or Velvet ash, is a tree species belonging to the olive family. Its scientific name is Fraxinus velutina. The tree features a unique greyish bark and is predominantly found in the southwestern regions of the United States and northern Mexico. It is commonly used in landscaping and reforestation projects. Some of the synonyms of downy ash include Arizona ash, Modesto ash, Fresno ash, and Desert ash. The tree is known for its relatively fast growth rate, tolerance to drought and poor soil, and excellent resistance to pests and diseases.