Fraxinus velutina

Arizona ash (Fraxinus velutina )

The Arizona ash (Fraxinus velutina ) is a deciduous tree species from the genus of ash trees in the family Oleaceae. Their natural habitat is located in the southwestern United States and Baja California.

Description

The Arizona Ash is a 10 to 12 meter tall deciduous tree with rounded crown and emerging branches. The branches are thin and hairless hairy to densely velvety. The terminal buds are brown and conical to ovoid. The leaves are 10 to 15 inches long, composed and consist of three to nine, usually five seated or up to 6 millimeters long stalked leaves. The leaves are 2.5 to 7.5 inches long, obovate to lanceolate, pointed with broad wedge-shaped to rounded base. Most both leaf surface and underside is pubescent. Both the hair and the shape of the leaves is highly variable. The flowers are dioecious and are distributed in short, often hairy, pendent racemes. Petals absent. The flowers appear with the leaves in May. As fruits 1.5 to 2 centimeters long, made round, nut winged fruit in cross-section, which runs down to the middle of wing.

Distribution and ecology

The distribution area of ​​Arizona ash ranges from southern California to Arizona over to New Mexico and south to Baja California. There she thrives as floodplain and riparian woodland on moderately dry to moderately moist, mildly acidic to strongly alkaline, sandy, gravelly or loamy, nutrient-rich soils in sunny locations. It is heat- loving and usually frost hardy.

System

The Arizona ash (Fraxinus velutina ) is a species from the genus of ash trees (Fraxinus ) from the family Oleaceae ( Oleaceae ). It is assigned to the section Melioides. A synonym of the species is Fraxinus pennsylvanica subsp. velutina GN million, which it is assigned as a subspecies of the red ash.

In addition to the nominate Fraxinus velutina var velutina is the variety Fraxinus velutina var coriacea ( S. Wats. ) Rehder distinguished. It differs by the more leathery and Netted and less hairy leaves. One finds the variety in California.

Evidence

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