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Barbwire cactus, Dildoe cactus
Acanthocereus tetragonus
Cactaceae
 

Copyright by: George D. Gann, 2013
In habitat, Everglades National Park, Key Largo, Florida

General Landscape Uses: Primarily recommended for natural landscapes and habitat restorations. Also useful in spiny barrier plantings.

Ecological Restoration Notes: Generally an uncommon element of coastal hammocks, but occasionally forms dense thickets.

Availability: Grown by enthusiasts and occasionally by native plant nurseries.

Description: Medium vinelike spiny shrub, sometimes forming dense thickets.

Dimensions: Typically 6-8 feet in height, but sometimes climbing higher in other vegetation.

Growth Rate: Moderate.

Range: Monroe County Keys north along the coasts to St. Lucie and Lee counties; West Indies, Texas, Mexico, Central America and northern South America. Somewhat sporadic along the South Florida coastline.

Plant Map Map of select IRC data from peninsular Florida.

 Map of suggested ZIP codes north to Indian River and Manatee counties.

 Map of ZIP codes with habitat recommendations north to Martin and Charlotte counties.

Habitats: Coastal hammocks.

Soils: Moist, well-drained sandy or limestone soils, with humusy top layer.

Nutritional Requirements: Moderate; can grow in nutrient poor soils, but needs some organic content to thrive.

Salt Water Tolerance: Moderate; tolerates brackish water or occasional inundation by salt water.

Salt Wind Tolerance: High; can tolerate moderate amounts of salt wind without injury.

Drought Tolerance: High; does not require any supplemental water once established.

Light Requirements: Light shade to moderate shade.

Flower Color: White.

Flower Characteristics: Showy; opens at night.

Flowering Season: All year.

Fruit: Red, spiny, tubercled berry.

Wildlife and Ecology: Attracts bat and moth (Sphingidae) pollinators at night.

Horticultural Notes: Easily grown from seed. It can also be grown from stem cuttings with the base planted about 2" in the ground.

Comments: Barbwire cactus is heavily armed with spines. It is listed as threatened by the state of Florida.


Copyright by: George D. Gann, 2013
In habitat, Everglades National Park, Key Largo, Florida

Copyright by: James Johnson, 2014
In habitat, Everglades National Park, Florida

Copyright by: George D. Gann, 2013
Seedlings in habitat, Everglades National Park, Key Largo,
Florida. Often confused with seedlings of Harrisia simpsonii.

Copyright by: George D. Gann, 2013
In habitat, Everglades National Park, Key Largo, Florida

Copyright by: George D. Gann, 2013
In habitat, northern Colombia

Copyright by: George D. Gann, 2013
In habitat, northern Colombia

Copyright by: Shirley Denton

Copyright by: Shirley Denton

Copyright by: Shirley Denton

Copyright by: Shirley Denton


Other data on Acanthocereus tetragonus available from:



 
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