Australian pine

Casuarinales > Casuarinaceae > Casuarina equisetifolia L.
Synonym(s): beach sheoak, common ironwood
Australian pine is a deciduous tree that occurs in open, coastal habitats including sand beaches, rocky coasts and sand dunes. Trees can grow to over 100 ft. (30.5 m) in height. The reddish-brown to gray bark is brittle and peels. Branchlets resemble pine needles and are very thin, 4-8 in. (10-20 cm) long and gray-green. Male and female flowers are present on the same plant and are inconspicuous. Male flowers occur in terminal spikes, while the female flowers are in small, axillary clusters. Fruit are tiny, winged nutlets that each contain one seed. The fruits are contained in woody, cone-like structures that are ¾ in. (2 cm) long. Australian pine is native to Australia and southeast Asia and was introduced into Florida in the late 1800’s.

Identification, Biology, Control and Management Resources

Selected Images

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Number:5285046
Description: Seedling(s);
Photographer:Forest & Kim Starr, U.S. Geological Survey
 Additional Resolutions and Image Usage
 
Number:5285005
Description: Tree(s);
Photographer:Forest & Kim Starr, U.S. Geological Survey
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Number:5281019
Description: Foliage;
Photographer:Dan Clark, USDI National Park Service
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Number:1461054
Description: Foliage;
Photographer:Amy Ferriter, State of Idaho
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Number:1461051
Description: Flower(s);
Photographer:Amy Ferriter, State of Idaho
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Number:5275043
Description: Fruit(s);
Photographer:Tony Pernas, USDI National Park Service
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Number:5287052
Description: Cones; voucher 060422 16
Photographer:Forest & Kim Starr, U.S. Geological Survey
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Number:5281020
Description: Seed(s); seed capsule
Photographer:Dan Clark, USDI National Park Service
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Number:5281021
Description: Seed(s); seed capsules
Photographer:Dan Clark, USDI National Park Service
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Number:5286023
Description: Plant(s); habit
Photographer:Forest & Kim Starr, U.S. Geological Survey
 Additional Resolutions and Image Usage
 
Number:5286024
Description: Plant(s); habit
Photographer:Forest & Kim Starr, U.S. Geological Survey
 Additional Resolutions and Image Usage
 
Number:5286025
Description: Plant(s); habit
Photographer:Forest & Kim Starr, U.S. Geological Survey
 Additional Resolutions and Image Usage
 
Number:1499005
Description: Tree(s);
Photographer:Tony Pernas, USDI National Park Service
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Number:5275041
Description: Infestation;
Photographer:Tony Pernas, USDI National Park Service
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Number:5275042
Description: Infestation;
Photographer:Tony Pernas, USDI National Park Service
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Number:5287088
Description: Tree(s); Forest
Photographer:Forest & Kim Starr, U.S. Geological Survey
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Number:5286030
Description: Tree(s); coastal trail
Photographer:Forest & Kim Starr, U.S. Geological Survey
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Number:1461171
Description: Infestation;
Photographer:Amy Ferriter, State of Idaho
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Number:5306089
Description: Seed(s);
Photographer:Steve Hurst, USDA NRCS PLANTS Database
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External Links

Invasive Reference(s)

  • California - Invasive Plant Inventory
  • Florida - EPPC list
  • Texas - Invasive Plant List
  •  
  • USDA Forest Service Fire Effects

Subject Reference(s)

  • USDA, NRCS. 2001. The PLANTS Database, Version 3.1, National Plant Data Center, Baton Rouge, LA 70874-4490 USA. - http://plants.usda.gov/