APCC12 is promoting 12 threatened plants from across the ACT region, to highlight some of the many endangered species that have limited profiles in the ACT region from a research and funding perspective. All are listed as endangered Australia-wide. View as a Flickr slideshow.
Rutidosis leptorrhynchoides (Button Wrinklewort)
Rutidosis leptorrhynchoides (Button Wrinklewort) is a perennial, multi-stemmed herb growing to 35cm tall. Flower-heads are bright yellow and button-like and the species flowers between December to March. Rutidosis leptorrhynchoides occurs in the Southern Tablelands of NSW and ACT, Gippsland Plain in eastern Victoria and the Volcanic Plains of western Victoria. Local populations are found at Goulburn, the Canberra - Queanbeyan area and Michelago growing in grassland and grassy woodland communities. Rutidosis leptorrhynchoides is listed as endangered and is threatened by habitat loss, invasive weeds, changed fire regimes, grazing and weed control impacts.
Rutidosis leptorrhynchoides (Button Wrinklewort), one of the threatened plants from the ACT region growing at the Australian National Botanic Gardens in Canberra. Photo: Jo Lynch
Caladenia actensis (Canberra spider orchid)
Caladenia actensis (Canberra spider orchid) is a critically endangered orchid with greenish flowers heavily marked with reddish crimson lines. It is endemic to the ACT and currently only known from two populations on Mt Ainslie and Mt Majura. Caladenia actensis does not flower every year and when it does, usually has only a single flower flowering from late September to mid-October. The orchid occurs amongst a ground cover of grasses, forbs and low shrubs and in transitional vegetation zones between open grassy woodlands and dry sclerophyll forests. The ongoing impact of urbanisation has led to a reduction in populations from four to two over the last forty years. Caladenia actensis is insect-pollinated and uses sexual mimicry to trick thynnid wasps into visiting their flowers.
Caladenia actensis (Canberra spider orchid) is endemic to the ACT and currently only known from two populations on Mt Ainslie and Mt Majura. Photo: Tobias Hayashi
Ammobium craspedioides (Yass Daisy)
Ammobium craspedioides (Yass Daisy) is a rosette forming perennial herb that bears solitary, yellow flower-heads and grows in dry forest, box gum woodland and secondary grassland. It is found from near Crookwell on the Southern Tablelands to near Wagga Wagga, with most populations being found in the Yass region. Ammobium craspedioides is listed as vulnerable in NSW with the main threats being from agricultural and infrastructure development, weed invasion and intensification of grazing.
Ammobium craspedioides (Yass Daisy) is found from near Crookwell to near Wagga Wagga, with most populations in the Yass region. Photo: Bindi Vanzella
Gentiana baeuerlenii (Baeuerlen’s Gentian)
Gentiana baeuerlenii (Baeuerlen’s Gentian) is a small annual herb found in Namadgi National Park but the species has not been observed since 1998 and is possibly extinct. Growing to less than 4cm tall, Gentiana baeulerlenii has single, small, bell-shaped flowers that are green on the outside and pale-blue on the outside and flower in autumn. The species occurs in inter-tussock spaces in moist tussock grassland and sedgeland. Threats to Gentiana baeulerlenii include the modification of habitat that results in changes to vegetation cover and competition.
Gentiana baeuerlenii (Baurelen’s Gentian) hasn’t been seen in Namadgi National Park since 1998 and is possibly extinct. Photo: John Briggs
Grevillea iaspicula (Wee Jasper Grevillea)
Grevillea iaspicula (Wee Jasper Grevillea) is an erect shrub growing to 2.5 m tall with small creamy-pink flowers hanging in spider-like clusters, flowering in the winter and spring. It is listed as critically endangered in NSW and is only found naturally at six sites around the Lake Burrinjuck and Wee Jasper areas. Heavy grazing by feral goats led to the species’ near extinction by the mid-1990s but tailored protection measures including fencing and intensive feral goat control at Burrinjuck Nature Reserve have led to the Grevillea iaspicula flowering in the reserve for the first time in two decades and the emergence of around 150 new seedlings.
Grevillea iaspicula (Wee Jasper Grevillea) is only found naturally at six sites around the Lake Burrinjuck and Wee Jasper areas. Photo: Brian Walters
Lepidium ginninderrense (Ginninderra Peppercress)
Lepidium ginninderrense (Ginninderra Peppercress) is a perennial herb that grows to 20 cm tall. Listed as endangered in the ACT, it is only known from two natural sites and two planted sites in the northern ACT. Lepidium ginninderrense occurs in natural temperate grassland in areas with low and sparse perennial grass cover. Threats include land use changes, competition from grasses and overgrazing by the eastern grey kangaroo.
Lepidium ginninderrense (Ginninderra Peppercress) is known from two natural sites and two planted sites in the northern ACT. Photo: Bruce Clarke
Leucochrysum albicans subsp. tricolor (Hoary Sunray)
The threatened Leucochrysum albicans subsp. tricolor (Hoary Sunray) is a perennial everlasting daisy growing to 15 cm tall with an inflorescence of a single flower head with a yellow disc centre and white radiating bracts, flowering in the spring and summer. Leucochrysum albicans subsp. tricolor occurs in a variety of grassland, grassy woodlands and dry open forest, in natural or semi-natural vegetation. Endemic to south-eastern Australia, it is known from three geographically separate areas in Tasmania, Victoria and south-eastern NSW and ACT. In NSW it occurs on the Southern Tablelands’ adjacent areas in an area roughly bounded by Albury, Bega and Goulburn.
The threatened Leucochrysum albicans subsp. tricolor (Hoary Sunray) growing on the north western slopes of Mt Majura ACT. Photo: Waltraud Pix
Calotis glandulosa (Mauve Burr-daisy),
Calotis glandulosa (Mauve Burr-daisy) is a sprawling, branched herb that grows to 20 cm tall and 1 m wide. The solitary flower-heads appear in the spring and summer and may be mauve, white, blue or pink with a yellow centre. Calotis glandulosa is found in the Monaro and Kosciuszko regions. The species, found in montane, subalpine and natural temperate grasslands is classified as vulnerable and continues to be threatened by habitat loss and disturbance.
Calotis glandulosa (Mauve Burr-daisy), one of the threatened plants from the ACT region growing at the Australian National Botanic Gardens in Canberra. Photo: Lily Berry.
Pomaderris delicata (Delicate Pomaderris)
Pomaderris delicata (Delicate Pomaderris) is a shrub 1 - 2 m tall with golden yellow flowers. It is known from only two populations south-west of Goulburn on the Southern Tablelands of NSW in dry open sclerophyll forests. Pomaderris delicata is listed as critically endangered in NSW and due to the highly restricted geographic distribution faces a high risk of extinction as a result of habitat disturbance, roadside damage, understory clearing and overgrazing.
Pomaderris delicata (Delicate Pomaderris) in known from only two sites, between Goulburn and Bundonia, and south of Windellama. Photo: Neville Walsh
Swainsona recta (Small Purple Pea)
Swainsona recta (Small Purple Pea), a herbaceous perennial growing to 30 cm tall, flowers between late September to early December. It bears purple, pea-shaped flowers between late September and early December and occurs in the grassy understorey of woodlands and open-forests. Once widespread across south-eastern Australia, Swainsona recta is now restricted to a few locations in the ACT, the central slopes of NSW and in the Mt Chiltern area of Victoria due to loss of habitat from agricultural and urban development.
Photo: John Briggs
Meuhlenbeckia tuggeranong (Tuggeranong Lignum)
Muehlenbeckia tuggeranong is a sprawling shrub with a tangled mass of wiry stems, growing to 1m high and 1-2 m across. It is known from a few sites on the eastern bank of the Murrumbidgee River south of Canberra and is listed as endangered. Threats to Muehlenbeckia tuggeranong include damage from flood events, competition from invasive weeds, herbicide poisoning, inappropriate fire regimes and human physical impact.
Photo: Murray Fagg
Dillwynia glaucula (Michelago Parrot-pea)
Dillwynia glaucula (Michelago Parrot-pea) is an erect shrub growing to 2.5 m high with yellow and red pea-like flowers that flower mainly in October. It is listed as endangered in NSW and only known from five areas on the NSW Southern Tablelands with less than an estimated 2500 individual plants existing. Dillwynia glaucula grows in dry sclerophyll woodlands on exposed patches of clay or rocky outcrops. Clearing and disturbance of habitat, competition from weeds and grazing are the main threats to this species.
Dillwynia glaucula (Michelago Parrot-pea) is only found in five recorded areas on the NSW Southern Tablelands. Photo: John Briggs
Bossiaea-grayi (Murrumbidgee Bossiaea)
Photo: Murray Fagg
Eucalyptus recurva (Mongarlowe Mallee)
Photo: MD Crisp