Where did the name Dicksonia antarctica come from?

The name "Dicksonia antarctica" sounds almost mysterious at first glance. To many people, “antarctica” suggests ice, penguins and the Antarctic continent. Yet this beautiful tree fern is not an Antarctic plant at all. It is native to the cool, moist forests and gullies of south-eastern Australia, including Tasmania, Victoria, New South Wales and Queensland. [1][2]

So where did the name come from?

The first part of the name, "Dicksonia", honours James Dickson, an 18th and early 19th century British botanist and nurseryman. Dickson was well known for his work with plants, especially cryptogams - a traditional group that included ferns, mosses, liverworts and fungi. Botanical names often preserve the names of important collectors, botanists or patrons, and in this case the genus "Dicksonia" carries James Dickson’s name forward. [3][4]

Image credit: James Dickson F.L.S. Engraving after Henry Perronet Briggs, published by J. Graf, 1820. Courtesy of the U.S. National Library of Medicine, Images from the History of Medicine. Public domain.

The second part of the name, "antarctica", is the part that often causes confusion. In botanical Latin, it does not mean that the plant grows in Antarctica. Instead, it refers more broadly to the far south or southern regions. For European botanists describing plants from Australia, Tasmania and nearby southern lands, “antarctica” was sometimes used to indicate a southern distribution rather than the frozen Antarctic continent itself. [3][4]

Dicksonia antarcticas' Full Name

The accepted botanical name is "Dicksonia antarctica Labill". The abbreviation “Labill.” refers to Jacques-Julien Houtou de Labillardière, the French naturalist who first formally described the species. Kew’s Plants of the World Online records the name as first published in "Novae Hollandiae Plantarum Specimen" in 1806. [2]

Amazing Dicksonia antartica specimen at Evercreech Falls - Mathinna - TAS

Dicksonia antarcticas' Other Names

Common names such as “soft tree fern”, “brown tree-fern” and “Tasmanian tree fern” are often more familiar to gardeners and landscapers, but the scientific name tells a deeper story. "Dicksonia" connects the plant to the history of botanical science, while "antarctica" reflects the southern world from which the species became known to European botanists. [3][5]

Tasmanian Tree Ferns

Here in Tasmania Australia, "Dicksonia antarctica" is not just a name in a botanical record. It is a living part of wet forests, gullies and shaded creek lines, where mature plants can form striking green canopies and provide habitat for other life. The Australian National Botanic Gardens describes "Dicksonia antarctica" as an attractive fern that can grow up to 15 metres in height, with large dark green fronds forming a spreading canopy. [1] Museum's appreciate the majesty of Dicksonia antarctica, which give the prehistoic garden appearance for displaying dinosaur and ancient history items.

Understanding the name helps tell the wider story of this remarkable plant. It is a species tied to ancient fern lineages, southern forests, botanical exploration and the living landscapes of Tasmania. Its name may sound distant and icy, but "Dicksonia antarctica" belongs very much to the cool, wet, green places of south-eastern Australia.

#DicksoniaAntarctica #TreeFern #TasmanianTreeFern #SoftTreeFern #Fernmania #TasmanianFerns #AustralianNativePlants #softtreeferns #NativeFerns #FernFacts

#BotanicalHistory #PlantNames #PlantScience #TasmanianPlants #CoolClimateGardening #AncientPlants

[1] Australian National Botanic Gardens — describes Dicksonia antarctica as a large attractive fern, up to 15 m high, with dark green fronds and a broad canopy.

[2] Kew Plants of the World Online — records Dicksonia antarctica Labill. as an accepted species, first published in 1806, native to New South Wales, Queensland, Tasmania and Victoria.

[3] Missouri Botanical Garden — states that the genus name honours James Dickson and that the specific epithet likely refers to the fern’s southern native range.

[4] Botanical Society of Scotland — explains that Dicksonia was named after James Dickson and that “antarctica” refers to the far south, not the Antarctic continent.

[5] PlantNET / Royal Botanic Gardens Sydney — lists the common names “soft tree-fern” and “brown tree-fern”, describes the species, and records its occurrence in Queensland, Victoria, Tasmania and South Australia.