Ash  (Fraxinus ), a valuable timber-tree belonging to the olive tribe. It has smooth, olive-grey bark, black buds, opposite pinnate leaves of from seven to fifteen leaflets, flowers without calyx or corolla, and an oblong-winged fruit. Its wood is more flexible than that of any other European tree, and is used for walking-sticks, spade-handles, the spokes and felloes of wheels, etc. There are about twelve species native to North America. The best known are: Common Ash , a large tree one hundred to one hundred and fifty feet high, growing wild in southern Europe and northern Asia. White Ash , a large tree forty-five to ninety feet high; Nova Scotia to Florida, westward to Minnesota and Texas. Green Ash , forty to fifty feet high, Vermont to Florida, intermittently to Utah and Arizona. Red Ash , a small tree, rarely more than forty feet high, growing in moist soil from New Brunswick to South Dakota, Florida, Alabama and Missouri. Blue Ash , fifty to seventy-five feet high, Ontario, Minnesota, and Michigan to Alabama, west to Iowa and Arkansas. Black  or Hoop Ash , a large tree, seventy to eighty feet high, Newfoundland to Manitoba, south to Virginia and Arkansas.