Fraxinus, commonly called ash, is a genus of plants in the olive and lilac family, Oleaceae, and comprises 45–65 species of usually medium-to-large trees, most of which are deciduous trees, although some subtropical species are evergreen trees. The genus is widespread throughout much of Europe, Asia, and North America.
Fraxinus quadrangulata, the blue ash, is a species of ash native primarily to the Midwestern United States from Oklahoma to Michigan, as well as the Bluegrass region of Kentucky and the Nashville Basin region of Tennessee. Isolated populations exist in Alabama, Southern Ontario, and small sections of the Appalachian Mountains. It is typically found over calcareous substrates such as limestone, growing on limestone slopes and in moist valley soils, at elevations of 120–600 m.
Fraxinus excelsior, known as the ash, or European ash or common ash to distinguish it from other types of ash, is a flowering plant species in the olive family Oleaceae. It is native throughout mainland Europe east to the Caucasus and Alborz mountains, and Great Britain and Ireland, the latter determining its western boundary. The northernmost location is in the Trondheimsfjord region of Norway. The species is widely cultivated and reportedly naturalised in New Zealand and in scattered locales in the United States and Canada.
The rowans or mountain-ashes are shrubs or trees in the genus Sorbus of the rose family, Rosaceae. They are native throughout the cool temperate regions of the Northern Hemisphere, with the highest species diversity in the Himalaya, southern Tibet and parts of western China, where numerous apomictic microspecies occur. The name rowan was originally applied to the species Sorbus aucuparia and is also used for other species in Sorbus subgenus Sorbus.
Fraxinus latifolia, the Oregon ash, is a member of the ash genus Fraxinus, native to western North America.
Fraxinus nigra, the black ash, is a species of ash native to much of eastern Canada and the northeastern United States, from western Newfoundland west to southeastern Manitoba, and south to Illinois and northern Virginia. Formerly abundant, as of 2014 the species is threatened with near total extirpation throughout its range, as a result of infestation by a parasitic insect known as the emerald ash borer.
Fraxinus angustifolia, the narrow-leaved ash, is a species of Fraxinus native to Central Europe and Southern Europe, Northwest Africa, and Southwest Asia.
Fraxinus mandshurica, the Manchurian ash, is a species of Fraxinus native to northeastern Asia in northern China, Korea, Japan and southeastern Russia.
Acer cissifolium is a maple native to Japan, from southern Hokkaidō south through Honshū and Shikoku to Kyūshū.
Sorbus cashmiriana, the Kashmir rowan, is a species of flowering plant in the family Rosaceae, native to the western Himalayas, including Kashmir.
Fraxinus velutina, the velvet ash, Arizona ash or Modesto ash, is a species of Fraxinus native to southwestern North America, in the United States from southern California east to Texas, and in Mexico from northern Baja California east to Coahuila and Nuevo León.
Fraxinus lanuginosa is a species of ash native to Japan and to the Primorye region of eastern Russia.
Picrasma quassioides is a species of Picrasma native to temperate regions of southern Asia, from the northeast of Pakistan east along the Himalaya and through East Asia from southern, central and eastern China to Taiwan, Japan and Korea.
Sorbus glabrescens is a species of rowan native to Yunnan in China.
Sorbus oligodonta, the kite-leaf rowan, is a species of rowan native to northern Yunnan, southeastern Tibet, and western Sichuan in China as well as to Myanmar.
Sorbus × hybrida, the oakleaf mountain ash, Swedish service-tree or Finnish whitebeam, is a hybrid species of whitebeam native to Norway, eastern Sweden, southwestern Finland, and locally in Latvia.
Sorbus hupehensis is a species of rowan native to central and western China.
Prays fraxinella, also known as the ash bud moth, is a moth of the family Plutellidae found in Europe. The larvae are leaf miners, feeding on the leaves and buds of ash trees.
Fraxinus floribunda is a species of ash native to South Asia, East Asia, and Southeast Asia. It is known from Afghanistan, Pakistan, Nepal, Assam, Bhutan, Laos, Myanmar (Burma), Thailand, Vietnam, the Ryukyu Islands, and parts of China.
Aceria fraxinivora, also known as the cauliflower gall mite and the ash key gall, causes the growths, known as galls, found on the hanging seeds or "keys" of the ash (Fraxinus) species.
