12 of Australia's rarest and most vulnerable plants
Alongside Australia’s more familiar plants are others that exist in far smaller numbers. Some have always grown in very specific places, while others have been pushed to the margins as land use, fire and water patterns have changed.
Many rare plants are closely tied to particular soils, climates or seasonal conditions. Each contributes something distinct to the places they belong, whether that is food for insects, structure for habitats or stability in fragile systems.
These twelve plants are among Australia’s rarest and most vulnerable. Understanding them is the first step towards recognising why they matter and why protecting them is worth the effort. Some can also be grown in home gardens when it is done thoughtfully and responsibly.
1. Albany Granite Banksia (Banksia verticillata)
Western Australia
Conservation status: Vulnerable (EPBC Act)
MainlandQuokka, CC BY-SA 3.0, via Wikimedia Commons
This banksia is restricted to a narrow stretch of Western Australia’s south coast, often growing among granite outcrops where conditions are harsh and soil is shallow. Its natural range has always been small, which makes it particularly sensitive to disturbance.
What makes it remarkable is its role in the landscape. It produces large amounts of nectar and flowers during times when few other resources are available, making it an important plant for birds and insects.
Its vulnerability is tied to its limited distribution, sensitivity to soil borne disease and the way fire interacts with its habitat. Once lost from a site, it is slow and difficult to replace.
2. Anglesea Grevillea (Grevillea infecunda)
Victoria
Conservation status: Vulnerable (EPBC Act)
Melburnian, CC BY-SA 3.0, via Wikimedia Commons
Anglesea Grevillea is one of Australia’s rarest grevilleas, naturally confined to a very small area near the Victorian coast. Its entire wild population exists within a tightly defined footprint.
This grevillea does not rely on seed in the same way many others do, which limits how quickly populations can recover after disturbance. Because of this, even small changes to land use or soil conditions can have lasting effects.
Despite its rarity, it plays a valuable role as a nectar source and highlights how easily localised plants can disappear without notice.
3. Leafy Greenhood (Pterostylis cucullata)
South Australia, Victoria, Tasmania
Conservation status: Vulnerable (EPBC Act)
CC BY 3.0, via Wikimedia Commons
The Leafy Greenhood is a terrestrial orchid that grows at ground level in cooler regions of south eastern Australia. Like many orchids, it is highly sensitive to changes in soil structure, moisture and competition from weeds.
Its decline reflects broader pressures on the forest floor including trampling, grazing, clearing and fragmentation. Orchids often rely on specific soil fungi to survive, which means they cannot simply be relocated or replanted without those conditions in place.
This species is valued not just for its distinctive flower, but for what it indicates about the health of the ecosystems it inhabits.
4. Enfield Grevillea (Grevillea bedggoodiana)
Victoria
Conservation status: Vulnerable (EPBC Act)
Melburnian, CC BY 3.0, via Wikimedia Commons
This low growing grevillea is native to a small area near Ballarat in central Victoria. It produces soft green and pink flowers and has always existed within a very limited natural range.
Its rarity is tied to the loss and fragmentation of grassy woodland habitats. With so few remaining populations, even minor disturbance can have lasting consequences.
Enfield Grevillea reflects how easily localised plants can slip into vulnerability and why small, unassuming species still deserve careful attention.
5. Biconvex Paperbark (Melaleuca biconvexa)
New South Wales, Victoria
Conservation status: Vulnerable (EPBC Act)
Geoff Derrin, CC BY-SA 4.0, via Wikimedia Commons
This paperbark is tied to wet habitats such as creek lines, floodplains and seasonally damp areas that have been heavily modified through drainage and development.
Where it grows, it supports a rich community of insects and birds and helps stabilise soils in moist conditions. As these environments have declined, so too has the species.
It is a reminder that rarity is not limited to dry or remote landscapes. Some of Australia’s most vulnerable plants are those associated with water.
Tools for Australian Gardeners
6. Flame Spider Flower (Grevillea kennedyana)
New South Wales, Queensland
Conservation status: Vulnerable (EPBC Act)
Murray Fagg, CC BY 3.0 AU, via Wikimedia Commons
The Flame Spider Flower is a striking grevillea with vivid red blooms that stand out against dry woodland and heath landscapes. It occurs in a narrow band near the New South Wales and Queensland border.
Its vulnerability comes from its limited distribution and sensitivity to changes in land use, grazing and fire patterns. When populations are small, recovery is slow and uncertain.
This species highlights the importance of protecting flowering plants that support wildlife while being tightly bound to specific places.
7. Small Purple Pea (Swainsona recta)
Australian Capital Territory, New South Wales, Victoria
Conservation status: Vulnerable (EPBC Act)
Murray Fagg, CC BY-SA 4.0, via Wikimedia Commons
Small Purple Pea is a delicate native legume with soft purple flowers, once widespread across lowland grasslands in south eastern Australia. Today, it survives in scattered remnants.
Its decline closely mirrors the loss of native grasslands, one of Australia’s most heavily altered ecosystems. Clearing, grazing and fragmentation have reduced suitable habitat to small and often isolated patches.
This species highlights how easily familiar looking flowers can become rare and why protecting grassland systems matters just as much as protecting forests.
8. Clover Glycine (Glycine latrobeana)
Victoria, South Australia
Conservation status: Vulnerable (EPBC Act)
DavidFrancis34 from Australia, CC BY-SA 2.0, via Wikimedia Commons
Clover Glycine is a low growing native pea found in grasslands and open woodlands, where it weaves into the ground layer rather than standing apart from it. It flowers briefly and on its own terms, appearing when conditions align.
Its vulnerability is tied to how tightly it is adapted to these environments. As grasslands have been broken up and simplified, plants that rely on intact ground layers have had fewer places to persist.
Clover Glycine reminds us that some plants are not built to compete or spread. Their survival depends on continuity and landscapes that are allowed to remain complex.
9. Sunshine Spider Orchid (Caladenia versicolor)
Victoria
Conservation status: Vulnerable (EPBC Act)
Reiner Richter, CC BY 3.0 AU, via Wikimedia Commons
The Sunshine Spider Orchid is a visually striking orchid known for its deep colours and fine markings. It occurs in a small number of locations in Victoria and appears only briefly when conditions are right.
Its vulnerability is linked to habitat loss, weed competition and the complex ecological relationships orchids rely on to survive. Without the right soil conditions and fungi, these plants cannot persist.
This orchid represents the precision with which some plants are tied to their environment and how easily that balance can be disrupted.
10. Silver Leaf Sunray (Leucochrysum albicans subsp. tricolor)
Victoria
Conservation status: Vulnerable (EPBC Act)
Harry Rose from South West Rocks, Australia, CC BY 2.0, via Wikimedia Commons
Silver Leaf Sunray is a soft flowering daisy associated with native grasslands. While daisies can feel familiar, this subspecies has a very limited distribution.
Its decline mirrors the reduction of intact grassland systems, which have been extensively cleared or modified. What remains often survives in small, isolated patches.
This plant highlights how even recognisable flower forms can mask deep vulnerability and why protecting whole landscapes matters as much as protecting individual species.
11. MacDonnell Ranges Daisy Bush (Olearia macdonnellensis)
Northern Territory
Conservation status: Vulnerable (EPBC Act)
iNaturalist NZ user: rachbaxter, CC BY 4.0, via Wikimedia Commons
Olearia macdonnellensis is a daisy shrub native to a small area of the MacDonnell Ranges in central Australia. It grows among rocky slopes and ranges where conditions are harsh and resources are limited.
Its rarity is shaped by its very restricted range and its sensitivity to changes in fire patterns and weed pressure. When a plant is confined to a specific landscape, even subtle shifts in how that land is managed can have lasting effects.
Even in the arid centre of the country, some plants exist only where conditions align precisely and their continued presence depends on those places remaining intact.
12. Swamp Boronia (Boronia deanei)
Queensland
Conservation status: Vulnerable (EPBC Act)
Geoff Derrin, CC BY-SA 4.0, via Wikimedia Commons
Swamp Boronia is a delicate shrub with soft pink flowers that grows in seasonally wet places in south eastern Queensland. Its blooms are subtle but distinct.
Its rarity is tied to the loss and fragmentation of wetland habitats. When a plant depends on very particular wet conditions, changes in the landscape can have long lasting consequences.
Swamp Boronia is a reminder that some of Australia’s rare flowers thrive in damp, transitional places that do not often make it into the garden spotlight but are vital for local biodiversity.
Growing rare plants responsibly
Some of the plants in this list are cultivated by specialist nurseries and can be grown in home gardens. This can support ethical propagation and helps reduce pressure on wild populations.
- Choose nursery propagated plants or seed and never wild collected material
- Plant species that genuinely suit your climate, soil and available space
- Ask about provenance if you live within a species’ natural range
Saving Australia’s rare and threatened plants
Sadly, the stories of loss extend far beyond this list. Across Australia, there are many hundreds of native plants listed as nationally threatened and countless more that are declining. Ensuring these plants retain a foothold now and into the future is part of caring for the places we live in.
We can take responsibility by paying attention to the plants around us, learning which ones belong where and making careful decisions about what we grow.
Whether that shows up as indigenous plants in your own space, choosing not to plant when the conditions aren’t right or finding out more about the places you garden in, it all counts.
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