FNPS Plant Database

Alnus serrulata

hazel alder, smooth alder

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Nomenclature

Common Name:

hazel alder, smooth alder

Synonym(s):

Genus species:

Alnus serrulata

Family:

Betulaceae

Plant Specifics

Form:

shrub

Size:

5-30 ft tall by 5-10 ft wide

Life Span:

long-lived perennial

Flower Color:

yellow

Fruit Color:

brown

Phenology:

Deciduous

Noted For:

Showy Flowers, Interesting Bark

Landscaping

Recommended Uses:

Informal specimen plant or could be used as a mass planting or hedge in moist areas. It is usually a multi-stemmed tall shrub.

Considerations:

Availability:

Native Plant Nurseries, FNPS Plant Sales, Friends

Propagation:

From seed or division.

Light:

Full Sun, Part Shade

Moisture Tolerance:

Always Flooded------------------------------------------------Extremely Dry

<--------------------> ----|----|----|----|----|

aquatic ---to--- Somewhat moist, no flooding

Salt Water Flooding Tolerance:

Tolerant of inundation with brackish water

Salt Spray/Salty Soil Tolerance:

Some tolerance to salty wind but not direct salt spray.

Soil or Other Substrate:

Loam, Sand

Soil pH:

acidic

Suitable to Grow In:

8A, 8B

USDA zones are based on the average annual extreme minimum winter temperature.



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Ecology

Wildlife:

Mammals
Browsed by deer.

Native Habitats:

Swamps, river floodplains

Natural Range in Florida:

Comments:

Ethnobotany:

General Comments:

It forms root nodules with a symbiont fungus to fix its own nitrogen, so it grows well in poor or sterile soil. Its persistent fruit looks like a very small pine cone.

Citations:

Wunderlin, R. P., B. F. Hansen, A. R. Franck, and F. B. Essig. 2021. Atlas of Florida Plants ( https://florida.plantatlas.usf.edu/ ). Institute for Systematic Botany, University of South Florida, Tampa.

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