미국물푸레나무-[정명] Fraxinus americana L.

과명	Engler- APG Ⅳ- Oleaceae (물푸레나무과)	속명	Fraxinus (물푸레나무속)
전체학명	[정명] Fraxinus americana L.	추천명	미국물푸레나
비추천명	미국물푸레나무,뾰족잎물푸레나무,외물푸레

추천명변경: 미국물푸레 -> 미국물푸레나무

Fraxinus americana, the white ash or American ash, is a fast-growing species of ash tree native to eastern and central North America.

The species is native to mesophytic hardwood forests from Nova Scotia west to Minnesota, south to northern Florida, and southwest to eastern Texas. Isolated populations have also been found in western Texas, Wyoming, and Colorado, and the species is reportedly naturalized in Hawaii.

There are an estimated 8 billion ash trees in the United States – the majority being white ash trees and green ash trees. White ash trees are threatened by the spread of the invasive emerald ash borer (Agrilus planipennis), detected in Detroit, Michigan in 2002 and now found in eastern Canada and the majority of U.S. states, whose larvae kill ash trees.

Characteristics

The name white ash derives from the glaucous undersides of the leaves. It is similar in appearance to the green ash, making identification difficult. The lower sides of the leaves of white ash are lighter in color than their upper sides, and the outer surface of the twigs of white ash may be flaky or peeling. Green ash leaves are similar in color on upper and lower sides, and twigs are smoother. White ash leaves turn yellow or red in autumn. Despite some overlap, the two species tend to grow in different locations as well; white ash is a forest tree that commonly occurs alongside sugar maple while green ash is a pioneer species that inhabits riparian zones and disturbed areas. The white ash's compound leaves usually have 7 leaflets per leaf whereas the counts in other ash trees more often vary.

Like other species in the section Melioides, Fraxinus americana is dioecious, with male and female flowers produced on separate individuals.

 

Fraxinus americana - Wikipedia

https://youtu.be/eMC9JgOmu6Y?t=793