Document ID: chunk:federal_register_of_legislation:F2025L00287:reg:3:p253
Version: federal_register_of_legislation:F2025L00287
Segment Type: reg
Provision Reference: reg 3 (pt 253/276)
Character Range: 924064–927176

rehabilitation. Carry out targeted weed control and maintenance around existing populations to create gaps to allow the penetration of sunlight. Undertake research into the causes of plant death and treatment options.

Recovery target
The recovery target is shown in Table 152.
Table 152 Recovery target for Wikstroemia australis
EPBC Act status        Estimated population (2023)  Where known populations occur  2034 target
Critically Endangered  629                          >95% within the national park  1000

Relevant literature
Christian NE & Mills K (2021) Vegetation Mapping of Norfolk Island 2021. Unpublished data.
Gilmour PM & Helman CE (1989b) The Vegetation of Norfolk Island National Park. Report to the Australian National Parks and Wildlife Service, Norfolk Island.
Invasive Species Council & TierraMar (2021) The Native Plant Communities of Norfolk Island. Invasive Species Council, Katoomba, NSW.
Mills K (2010) The Flora of Norfolk Island. 11. Field Survey and Assessment of the Critically Endangered Endemic Plant Wikstroemia australis (Kurrajong). Kevin Mills & Associates, Jamberoo, NSW.
Mills K (2012b) The Flora of Norfolk Island. Report 14. The Endangered Plants in the national park: Field Survey and Review. Kevin Mills & Associates, Jamberoo, NSW.
Orchard A (ed) (1994) Flora of Australia. Vol. 49. Oceanic Islands 1. Australian Government Publishing Service, Canberra.
Sykes W & Atkinson I (1988) Rare and Endangered Plants of Norfolk Island. Unpublished report to the Australian National Parks and Wildlife Service, Norfolk Island.
TSSC (Threatened Species Scientific Committee) (2003g) Listing Advice—Critically Endangered Wikstroemia australis (Kurrajong).
Tierney JW (1989) Report on investigation into kurrajong (Wikstroemia australis) decline and Phellinus noxius root rot control on Norfolk Island. Unpublished report to the Australian National Parks and Wildlife Service, Norfolk Island.

Zehneria baueriana—native cucumber, giant cucumber
Family CUCURBITACEAE

Conservation significance
In Australia it is restricted to Norfolk Island, but also occurs in New Caledonia.
EPBC Act Listing Status: Endangered.

Description
A large perennial climber with corky rope-like stems and red, fleshy berries.

Distribution and abundance
Zehneria baueriana has been collected from Mt Pitt (Orchard 1994) and recorded in the Mt Pitt and Phillip Island sections of the Norfolk Island National Park and in the Mission Road rainforest remnants. On Phillip Island, it occurs mainly in the highest parts of the Long Valley catchment (Mills 2009b).
There were 77 mature individuals recorded in 2003 (TSSC 2003c). By 2010, the Mission Road rainforest remnants contained the largest clumps of this species, and it was scattered throughout the national park as individuals (Director of National Parks 2010).
Mills (2012b) found the species to be quite common throughout the national park. 180 plants were counted during 2012 making it one of the most common species seen during flora surveys. The survey found a range of plant age classes from small seedlings to plants climbing high into trees,