Australian-pine

Casuarina equisetifolia L.

Appearance: Casuarina equisetifolia 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.
Foliage: 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.
Flowers: 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: Fruit are tiny, winged nutlets that each contain one seed. The fruits are contained in woody, cone-like structures that are 0.75 in. (2 cm) long.
Ecological Threat: Casuarina equisetifolia is native to Australia and southeast Asia and was introduced into Florida in the late 1800’s.

Foliage
Amy Ferriter, State of Idaho, Bugwood.org
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Foliage
Dan Clark, USDI National Park Service, Bugwood.org
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Flower(s) A close-up of a male catkin
John M. Randall, The Nature Conservancy, Bugwood.org
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Flower(s)
Amy Ferriter, State of Idaho, Bugwood.org
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Cones voucher 060422 16
Forest and Kim Starr, Starr Environmental, Bugwood.org
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Fruit(s)
Tony Pernas, USDI National Park Service, Bugwood.org
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Seed(s) seed capsule
Dan Clark, USDI National Park Service, Bugwood.org
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Seed(s) seed capsules
Dan Clark, USDI National Park Service, Bugwood.org
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Seed(s)
Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org
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Tree(s)
Forest and Kim Starr, Starr Environmental, Bugwood.org
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Seedling(s)
Forest and Kim Starr, Starr Environmental, Bugwood.org
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Plant(s) habit
Forest and Kim Starr, Starr Environmental, Bugwood.org
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Tree(s) Forest
Forest and Kim Starr, Starr Environmental, Bugwood.org
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Tree(s) coastal trail
Forest and Kim Starr, Starr Environmental, Bugwood.org
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Infestation
Tony Pernas, USDI National Park Service, Bugwood.org
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Tree(s)
Tony Pernas, USDI National Park Service, Bugwood.org
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Infestation
Amy Ferriter, State of Idaho, Bugwood.org
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