Ash - Fraxinus

Latin plant name Fraxinus Common plant name Ash (fresno) Plant type Tree Size (meters) <10-45 m Distinguishing features Both names, Latin and English, have the same meaning, spear. The leaves are opposite (rarely in whorls of three), and mostly pinnately compound, simple in a few species. The seeds, popularly known as keys or helicopter seeds, are a type of fruit known as a samara. Ash is a hardwood. Extensively used for making bows, tool handles, baseball bats, hurleys and other uses demanding high strength and resilience. There is a severe pest attacking the ashes all over Europe. Chalara dieback of ash is a serious disease of ash trees caused by a fungus called Chalara fraxinea (C. fraxinea). The disease causes leaf loss and crown dieback in affected trees, and usually leads to tree death.