Junghuhn’s Casuarina

Scientific name: Casuarina junghuhniana

Overview

Junghuhn’s Casuarina is a medium to large hardwood native to Indonesia and several islands of Southeast Asia and the Pacific region. The species is widely planted in tropical regions for erosion control, windbreaks, fuelwood, and reforestation projects. Its wood is dense, strong, and durable, making it suitable for a variety of utility applications, though it is less commonly encountered in commercial lumber markets.

Quick Facts

  • Common Name: Junghuhn’s Casuarina
  • Scientific Name: Casuarina junghuhniana
  • Region: Oceania & Pacific Hardwoods (Indonesia and Southeast Asia)
  • Tree Size: 50–100 ft tall, 1–2 ft trunk diameter
  • Average Dried Weight: 56 lbs/ft³ (900 kg/m³)
  • Janka Hardness: Approximately 2,000 lbf
  • Color: Reddish brown to dark brown
  • Grain: Straight to slightly interlocked
  • Texture: Fine and even

Identification Characteristics

Junghuhn’s Casuarina produces a reddish-brown to dark brown heartwood that often develops a deeper color with age. The wood has a fine texture and a subtle natural luster. Its density and hardness are characteristic of many sheoak species.

Key identification traits include:

  • Reddish brown to dark brown coloration
  • Fine and even texture
  • Straight to slightly interlocked grain
  • Dense and hard structure
  • Occasional subtle figure and ribbon patterns

Working Properties

Junghuhn’s Casuarina can be moderately difficult to machine because of its density, but it finishes well and produces smooth surfaces.

  • Moderately difficult to machine
  • Turns and polishes exceptionally well
  • Produces a smooth finished surface
  • Excellent wear resistance
  • Accepts oils and finishes readily

Safety Note

Wood dust may cause irritation in sensitive individuals. Appropriate dust collection and respiratory protection are recommended during machining.

Common Uses

Junghuhn’s Casuarina is commonly used in a variety of applications, including:

  • Tool handles
  • Woodturning
  • Furniture components
  • Flooring
  • Posts and poles
  • Decorative objects
  • Specialty woodworking projects
  • Firewood and charcoal

Sustainability & Notes

Junghuhn’s Casuarina is widely planted throughout tropical regions and is not considered threatened. The species is important in reforestation and land reclamation projects because of its adaptability to poor soils and its ability to improve soil fertility through nitrogen fixation.

Comparative Notes & Related Species

River Sheoak – A similarly dense Australian sheoak that is valued for decorative woodworking and turning.

Beefwood – A well-known member of the sheoak group with comparable density and attractive reddish coloration.

Forest Oak – Another dense sheoak prized for its fine texture and excellent finishing characteristics.

Related Guides

Casuarina Species Guide – Explores the characteristics, distribution, and uses of sheoak and beefwood species from around the world.

Best Woods for Outdoor Use – Examines wood species that perform well in demanding environments.

Building a Documented Wood Collection – Covers methods for cataloging and preserving wood samples.

Compare Wood Properties

See how this species ranks in density and hardness using our Wood Density & Janka Hardness Chart. You can also explore Hardest Woods, Softest Woods, and Most Dense Woods for quick comparisons.

Collector Notes

Junghuhn’s Casuarina is an interesting collector species because it represents one of the few sheoak species native to the Indonesian archipelago. Its dense, attractive wood and importance in reforestation projects make it a valuable addition to collections focused on tropical hardwoods, sheoak species, and lesser-known timbers of the Pacific region.

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Wood Sample Collection

This species is part of an ongoing effort to document and preserve wood samples from around the world.

Learn more about contributing to the collection:

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Resources

Authoritative botanical and forestry references used in compiling information about this species include:

• USDA Forest Service – Wood Handbook: Wood as an Engineering Material
https://www.fpl.fs.usda.gov/products/publications/

• The Wood Database – Global reference for wood identification, physical properties, and woodworking characteristics
https://www.wood-database.com/

• Royal Botanic Gardens, Kew – Plants of the World Online – Botanical taxonomy and species distribution database
https://powo.science.kew.org/

• International Union for Conservation of Nature (IUCN Red List) – Global conservation status assessments
https://www.iucnredlist.org/

• Convention on International Trade in Endangered Species (CITES) – International trade regulations for protected plant species
https://cites.org/

Additional forestry publications, academic research papers, and regional timber studies may also be referenced where available.

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Availability & Where to Buy

Exotic hardwood availability can vary significantly depending on region, sustainability regulations, and supplier inventory.

As this archive grows, recommended suppliers and specialty wood retailers will be listed here to help woodworkers locate responsibly sourced material.

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Availability varies — see the Where to Buy Exotic Woods page for current sources.

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