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Common Alder

Alnus glutinosa

GIS Coordinate:
N40 21.158 W94 52.955

Trail Number:
T16

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Description

Family:
Betulaceae

Foliage:
Leaves alternate, simple, 2 to 4 inches long, broadly ovate and doubly serrate

Native Locale:
Western Asia and Northern Africa

Mature Height:
40 to 60 feet

Mature Width:
20 to 40 feet

Hardiness Zones:
Zone 4 to 7

Soil Preference:
Prefers moist or wet soil but performs well in dry soils

Growth Habit:
Often weak pyramidal to narrow pyramidal outline and at other times developing an ovid or oblong head of irregular proportions; small trees show a pyramidal habit; often grown multi- stemmed and, in fact has more ornamental appeal when cultured in this fashion

Rate of Growth:
Fast in youth, tends to slow down when abundant flowering occur; 24 o 30" per year over 20 years

Disease and Insect:
Powdery mildew, cankers, leaf rust, wooly alder aphid, alder flea beetle, alder lace bug, leaf miner, sawfly, and tent caterpillar

Landscape Value:
n/a

Additional Notes:

  • Prefer; wet areas. This tree has the ability to fix atmospheric nitrogen, and its charcoal is used in the manufacture of fireworks.

Photos

Fruit - Common AlderLeaf - Common AlderSummer - Common AlderSummer '08 - Common Alder