Aesculus flava, the yellow buckeye, common buckeye, or sweet buckeye, is a species of deciduous tree. It is native to the Ohio Valley and Appalachian Mountains of the Eastern United States. It grows in mesophytic forest or floodplains, generally in acid to circumneutral soil, reaching a height of 20m to 47m.
Robert D. Williams
Yellow buckeye (Aeseulus octandra), also called sweet buckeye or big buckeye, is the largest of the buckeyes and is most abundant in the Great Smoky Mountains of southeastern United States. It grows best on moist and deep, dark humus soils with good drainage in river bottoms, coves, and northern slopes. The young shoots and seeds contain a poisonous glucoside that is harmful to animals, but the shape and foliage make this an attractive shade tree. The wood is the softest of all American hardwoods and makes poor lumber; but it is used for pulpwood and woodenware.