Not every significant plant in the Australian bush medicine tradition is famous. Tea tree oil has global brand recognition. Kakadu plum has found its way into premium skincare worldwide. But the knowledge accumulated by Aboriginal communities across this continent covers hundreds of species, many of which remain largely unknown outside specialist botanical and ethnobotanical circles.
Three of those plants deserve wider attention: snake vine, paperbark and old man saltbush. Each has a distinct traditional use profile, a distinct geographical range, and a distinct set of compounds beginning to attract scientific interest. Together, they illustrate the depth and diversity of Australia's native medicinal plant heritage beyond the famous names.
Snake Vine (Tinospora smilacina)
Snake vine is a vigorous climbing plant native to tropical and subtropical northern Australia, growing naturally across the Northern Territory, Queensland and parts of Western Australia. Its common name reflects its appearance — long, twining stems that wind through and over surrounding vegetation. It is a member of the Menispermaceae family, a plant family with a notable history in traditional medicine across tropical regions globally.
In Aboriginal communities across northern Australia, snake vine has documented traditional uses for fever, gastrointestinal complaints and general debility. The stems and roots were used in preparations consumed for fever management — consistent with the antipyretic (fever-reducing) properties documented in related species in the Menispermaceae family. The bitter taste of the plant, which is a characteristic of the family, reflects the presence of alkaloids and other compounds that often have pharmacological activity.
Laboratory research on Tinospora smilacina specifically is limited, but the broader genus Tinospora has been extensively studied internationally. Tinospora cordifolia, the Ayurvedic medicine plant known as guduchi, is in the same genus and has documented anti-inflammatory, immunomodulatory and antipyretic activity in multiple research studies. The close botanical relationship suggests that snake vine may share some of these properties, but Australian-specific research remains sparse.
The plant is not commercially available in any significant way and is not appropriate for self-collection and home preparation without specialist botanical and medicinal knowledge. Its significance here is primarily as an example of the depth of documented traditional knowledge that extends well beyond the plants that have attracted commercial interest.
Paperbark (Melaleuca species)
Paperbark trees — members of the Melaleuca genus — are a familiar presence along waterways, coastal wetlands and floodplains across northern and eastern Australia. The genus is the same as tea tree, and like tea tree, paperbark species produce essential oils with significant antimicrobial properties. But paperbark's medicinal significance in traditional Aboriginal practice goes well beyond its chemistry.
The most immediately distinctive feature of paperbark trees is their bark — layers of soft, papery, water-resistant material that peels away in sheets. This bark was one of the most versatile materials in traditional Aboriginal life: used for shelters, canoes, containers, cooking vessels and, critically, as a wound dressing and bandaging material. The physical properties of paperbark — flexible, relatively sterile, moisture-retaining — made it an effective wound covering, and the essential oil compounds in the bark added an antimicrobial dimension.
In terms of chemical composition, the leaves and bark of most paperbark species contain 1,8-cineole (eucalyptol) and other volatile compounds similar to those found in eucalyptus and tea tree. Some species produce cajuput oil — a traditional medicine in Southeast Asia derived from Melaleuca cajuputi — which has documented antimicrobial and anti-inflammatory properties and has been used medicinally in the region for centuries.
Steam inhalation using paperbark leaves was practised in some communities for respiratory conditions. Leaf infusions were used for washing wounds and skin conditions. The bark itself was used as a wound dressing and bandage in ways that are, in retrospect, pharmacologically sensible — the antimicrobial compounds in the bark would have contributed to infection control alongside the physical protection it provided.
Paperbark is not commercially extracted for essential oil at the scale of tea tree, but it occupies a significant place in both traditional practice and in the ecological life of Australian waterways. Growing paperbark trees is strongly encouraged in appropriate climates — they support diverse wildlife and are deeply significant in the cultural landscape of northern Australia.
Old Man Saltbush (Atriplex nummularia)
Old man saltbush is one of the most ecologically and culturally significant plants of Australia's arid interior. The large, spreading grey-green shrub — named for its size relative to other saltbush species — is native to inland Australia, where it grows on saline floodplains and clay soils across a vast area of South Australia, Victoria, NSW, Queensland and Western Australia. In areas where little else grows reliably through drought, old man saltbush maintains itself through remarkable physiological adaptations to salt and water stress.
Its nutritional significance has long been recognised — the leaves are edible, nutritious and flavourful (the characteristic salty tang makes it useful as a cooking herb), and it is now being taken seriously as a commercial native food plant. But its medicinal uses are equally interesting and considerably less discussed.
In Aboriginal communities across the arid interior, saltbush leaves were used topically for skin conditions — applied as a poultice or infusion to sores, rashes, insect bites and stings. The documented traditional use for skin conditions is consistent with the anti-inflammatory and antioxidant compounds identified in laboratory research. Several studies have found meaningful antioxidant activity in saltbush leaf extracts, attributed to flavonoids, phenolic acids and other polyphenolic compounds.
Research has also investigated saltbush for potential applications in wound healing. In-vitro studies have found that saltbush extracts can promote cell migration — a process important in wound closure — and inhibit certain bacteria involved in wound infections. These laboratory findings are early-stage but biologically plausible given the plant's traditional wound-care applications.
Old man saltbush is also appearing in native food products — most commonly as a flavouring herb for meats, breads and salts — and in some natural skincare formulations. As a garden plant it is extraordinarily hardy, drought-tolerant, and practically maintenance-free in appropriate climates. Its grey-silver foliage is attractive in dry gardens and it provides important habitat and food for native fauna in arid environments.
For those in arid and semi-arid Australia, old man saltbush is one of the few bush medicine plants that may be practically accessible in the wild — its extensive range means it grows in proximity to many rural and regional communities. A simple leaf infusion for topical skin soothing use is a low-risk application consistent with traditional use and supportable by the available (if limited) research.
What these three plants have in common
Snake vine, paperbark and saltbush are different plants from different environments, with different traditional uses and different chemical profiles. What they share is their relative invisibility in the commercial natural medicine space, despite having genuine traditional credibility and growing scientific interest.
This invisibility reflects the economics of the natural product industry: commercial investment follows commercial opportunity, and plants without a clear scalable product category attract less funding for research, less interest from brands, and less coverage in wellness media. The result is an enormous knowledge gap between the breadth of documented traditional bush medicine and the small number of plants that have crossed into mainstream product availability.
Filling that gap — through research, through ethical commercial development in partnership with Aboriginal communities, and through the kind of education that helps people understand the full scope of Australia's botanical heritage — is exactly what bush medicine needs next.