green ash - Oleaceae Fraxinus pennsylvanica


Common Namegreen ash
iTree CodeFRPE

Plant Form

FormTree: rounded or irregular crown
Height80 feet
Spread50 feet

Identification Description

Foliagepinnately compound leaves, 5-9 leaflets per leaf, leaflets attach to petiole via short leaf stem, ovate or broadly lanceolate Leaf Type  Information Icon Compound - Pinnate
Barkgray and smooth when young, then narrow interlaced ridges (diamond shaped ) pattern consistent over trunk
Budterminal bud large, dark brown pointed; lateral buds smaller, rounded Bud Arrangement Information Icon Opposite
Twigstout, current year greenish; leaf scar has flat-top, lenticels present
Flowerdioecious; flowers born on panicles, staminate flowers appear in a tight bunch, greenish yellow and maroon in color; pistillate flowers less dense revealing panicle structure, greenish yellow with darker maroonish tips
Fruitsingle winged seed (samara), "canoe paddle" shaped, base is pointed
Fall Coloryellow

Site Characteristics

USDA Zones   info for zones pH LevelsSalt Tolerance
Min2a Min4.6 SoilIntolerant
Max9a Max8.1 SprayIntolerant

Shade ToleranceDrought ToleranceAllelopathy
Tolerant Moderate No

Species Status

Nebraska Native Yes Check
U.S. Native Yes Check
Region of OriginUnited States, Canada
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