FNPS Plant Database

Zanthoxylum clava-herculis

Hercules-club
  • Photo by: Shirley Denton, Suncoast Chapter FNPS
  • Photo by: Shirley Denton, Suncoast Chapter FNPS
  • Photo by: Shirley Denton, Suncoast Chapter FNPS
  • Photo by: Shirley Denton, Suncoast Chapter FNPS
  • Photo by: Dick Diener

Nomenclature

Common Name:

Hercules-club

Synonym(s):

Genus species:

Zanthoxylum clava-herculis

Family:

Rutaceae

Plant Specifics

Form:

tree

Size:

10 to 25 (50) ft tall by 10-25 ft wide

Life Span:

Long-lived perennial

Flower Color:

white

Fruit Color:

yellow

Phenology:

Deciduous. Blooms in spring. Fruit ripens in fall.

Noted For:

Showy Flowers, Thorns, Interesting Foliage, Interesting Bark

Landscaping

Recommended Uses:

Specimen tree.

Considerations:

Quite thorny.

Availability:

Native Nurseries, Seed

Propagation:

Seed.

Light:

Full Sun, Part Sun

Moisture Tolerance:

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

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Usually moist, occasional inundation -to- Somewhat long very dry periods

Salt Water Flooding Tolerance:

Unknown

Salt Spray/Salty Soil Tolerance:

Moderate. Tolerant of salty wind and may get some salt spray.

Soil or Other Substrate:

Sand, Clay, Loam

Soil pH:

Suitable to Grow In:

8A,8B,9A,9B

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



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Ecology

Wildlife:

Caterpillars, Birds, Mammals

Larval host for giant swallowtail ( Papilio cresphontes ).

Birds and other wildlife eat the fruit.

Native Habitats:

Hammocks, wet woods, dunes, shell middens.

Natural Range in Florida:

Comments:

Ethnobotany:

The bitter aromatic bark was used for toothaches.

General Comments:

Wood is quite soft and weak.  This author had one break in a storm.  It did however resprout from low on the trunk and the sprout is now about 15 ft tal.

Citations:

Institute for Regional Conservation.  Accessed 2021.  Natives for Your Neighborhood.   https://regionalconservation.org/beta/nfyn/plantdetail.asp?tx=Zantclav.



Minno, Marc and Maria Minno.  1999. Florida Butterfly Gardening.  University Press of Florida. 



Tras, Pamela.  2001.  Gardening for Florida's butterflies.  Great Outdoors Publishing, St. Petersburg, FL.



Osorio, Rufino. 2001. A gardener's guide to Florida's native plants.  University Press of Florida, Gainesville, FL.



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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