We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.
Culinary

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

What is Casuarina?

Alex Tree
By
Updated: May 17, 2024
Views: 6,681
Share

Once the sole genus in the family Casuarinaceae, as of 2010 some of the species that were previously part of Casuarina are now distributed into three other genera. The 17 species that now make up this genus range from large evergreen shrubs that measure 10 feet (3 m) to trees that can grow up to 115 feet (35 m) tall. This genus’ name, Casuarina, comes from the Malay word kasuari, referring to the cassowary owing to the similarities between these plants’ foliage with the bird’s feathers. The common names she-oak, ironwood, and beefwood are used to refer to these species. Native to Asia, Australia, and the Pacific Islands, these plants are now also found in the Americas and Africa.

In general, these plants have leaves that are tiny and tooth-like, forming rings around modified branchlets, which are usually mistaken for its leaves. During the winter, they bloom with discreet reddish flowers. Their fruit are hard, woody, and cylindrical cones that attract birds like parrots and cockatoos that eat the seed heads, as well as the moths and beetles that feast on the fruit. Some species produce an edible resin that is used as a food source by Aborigines.

Casuarina plants have a wide latitude in their soil demands. They can grow not just in dry and salty soils on the seashore, but also on rocky or volcanic soils in the mountains. Even if they prefer well-drained soils, they can also survive in wet or calcareous soils. These plants have minimal water needs and can withstand periods of drought.

One notable characteristic of Casuarina plants are their negative allelophatic properties, as evidenced by the typical absence of understory around them. It has been observed that once they dominate a site, their heavy root mat and the fallen litter at their base inhibit other plants from growing. The species C. equisetifolia in particular, referred to as Australian pine in Florida, has been declared invasive and is included in the U.S. Federal and State Noxious Weed list due to this. Authorities have deemed that it is a threat to many endangered plant species in the Everglades National Park.

In contrast, this characteristic is valued in its native Australia, where it is called the Aboriginal woman’s tree. As virtually no other plants can grow underneath, Aboriginal children are known to be found playing underneath these trees, as they are believed to be in no danger from the "bush devil” or snakes, as these avoid the fallen litter of branchlets and leaves. Commercial uses of Casuarina plants include using it in landscaping as hedges and to stabilize the soil near drainage and shores. As it can survive in windswept locations, they are widely planted as windbreaks. The wood is also harvested for fencing, shingles, and firewood.

Share
WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Alex Tree
By Alex Tree
Andrew McDowell is a talented writer and WiseGeek contributor. His unique perspective and ability to communicate complex ideas in an accessible manner make him a valuable asset to the team, as he crafts content that both informs and engages readers.

Editors' Picks

Discussion Comments
Alex Tree
Alex Tree
Andrew McDowell is a talented writer and WiseGeek contributor. His unique perspective and ability to communicate complex ideas in an accessible manner make him a valuable asset to the team, as he crafts content that both informs and engages readers.
Share
https://www.wisegeek.net/what-is-casuarina.htm
Copy this link
WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.