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gray sheoak

Scientific Name: Casuarina glauca

Family: Casuarinaceae

Category: Dicot

Growth: Tree

Duration: Perennial

Other Names:

       

Gray Sheoak (Casuarina glauca)

The Gray Sheoak, scientifically known as Casuarina glauca, is a tree species with a variety of common names and a notable presence in certain ecosystems.

Considerations for Pets

  • The foliage consists of slender, much-branched green to grey-green twigs.
  • The fruit is enclosed by bracteoles in globose to ovoid, cone-like heads. The fruit are winged nutlets.

Considerations for Children

  • The foliage consists of slender, much-branched green to grey-green twigs.
  • The fruit is enclosed by bracteoles in globose to ovoid, cone-like heads. The fruit are winged nutlets.

Common Names

  • Scientific Name: Casuarina glauca Sieb. ex Spreng.
  • Common Names: Gray Sheoak, Swamp Oak, Grey Sheoak, River Oak, Australian-pine, Beefwood, Brazilian Oak, Longleaf Ironwood, Saltmarsh Ironwood, Scaly-bark Beefwood, Suckering Australian-pine. Other variations include Grey She-oak, Swamp She-oak, and Long-leaf Ironwood.

Taxonomy and Nomenclature

  • Family: Casuarinaceae
  • Synonyms: Casuarina obtusa Miq.
  • Taxonomic Rank: Species
  • Casuarina glauca Sieb. ex Spreng.

Distribution and Habitat

  • Native to the east coast of Australia.
  • Found in swampy areas and riverbanks.

Ecological Role

  • Identified as an invasive species in some regions, including Florida.
  • Known as the Suckering Australian-pine in Florida.

Morphological Characteristics and Growth Habits

  • Evergreen plant.
  • Medium-sized tree, reaching up to 10 meters in height.
  • Foliage consists of slender, much-branched green to grey-green twigs.
  • Reddish-brown to grey bark that is brittle and peels.

Quirky Facts

  • The tree assumes a green coloring in winter.

Allergen Information

  • Reported to have allergenic pollen.