Shire of Woodanilling
13. East of Aldersyde
Land and Forests
Note: Populations in bold text are considered to be important populations, MRWA = Main Roads Western Australia.
Research conducted into the reproductive biology and ecology of Verticordia fimbrilepis subsp. fimbrilepis by
The diversity of insect visitors to flowers, rates of pollination, and seed production were equal or greater for
small populations on road reserves compared with the larger populations in conservation reserves.
Yates and Ladd (2005) also concluded that seeds of Verticordia fimbrilepis subsp. fimbrilepis remained dormant
plants were killed by fire but mass recruitment from soil-stored seed occurred in the first and second winters
following. Seedling survival depended on water availability, nutrient levels and grazing pressure. Fire
suppression may adversely affect the Verticordia as most populations are declining and cannot recover without
the occurrence of fire. Small, fragmented populations however, are more affected by weeds which are also
abundant after fire, thereby outweighing any positive effects of fire without intervention management.
Verticordia fimbrilepis subsp. fimbrilepis was declared as Rare Flora under the Western Australian Wildlife
under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act 1999) as Endangered.
The main threats to the subspecies are insecure land tenure, road maintenance activities, weed invasion, poor
recruitment, inappropriate fire regimes, grazing, trampling, feral pigs, Phytophthora dieback, powerline
maintenance, salinity, farming activities and gravel extraction.
conservation and is of poor and deteriorating quality.
Road maintenance activities threaten Populations 1, 2, 4, 5, 6, 7, 8, 12, 13 and 15. Threats include
grading, chemical spraying, construction of drainage channels and the mowing/maintenance of roadside
vegetation. Several of these actions also encourage weed invasion.
Habitat degradation by weed invasion is a threat to Populations 1, 2, 3, 4, 5, 6, 7, 8, 12 and 13. Weeds
hazard due to the easy ignition of high fuel loads, which are produced annually by many grass weed
Poor recruitment has been observed in all populations, possibly due to a reduction of fire or other factors
that may influence reproduction.
Inappropriate fire regimes may affect the viability of populations. As seeds of Verticordia fimbrilepis
subsp. fimbrilepis germinate following fire, occasional fires are needed for reproduction, however, the soil
seed bank would rapidly be depleted if fires recurred before regenerating or juvenile plants reached
maturity. Fire may facilitate weed invasion and should be followed up with appropriate weed control.
Grazing and trampling by stock (sheep) and rabbits (Oryctolagus cuniculus) is a threat to Populations 3,
4, 7, 8, 13 and 14. As well as directly grazing Verticordia fimbrilepis subsp. Fimbrilepis, the animals
impact on the habitat by potentially spreading dieback and also by digging, trampling and breaking foliage.
An increased nutrient level in the soil from droppings is likely and may encourage weed invasion. Grazing
would have an impact on the establishment of young plants of V. fimbrilepis subsp. fimbrilepis thereby
limiting natural recruitment.
Feral Pigs (Sus scrofa) have been recorded in Population 16. Feral Pigs can directly damage the subspecies
and its habitat when digging in search of food. They can also introduce weed seeds and nutrients. Soil
disturbance also encourages the establishment of weeds.
Phytophthora dieback caused by Phytophthora cinnamomi, a pathogen that causes root rot resulting in
susceptible plants dying of drought stress, is a threat to Verticordia fimbrilepis subsp. fimbrilepis. Although
it is not known if the pathogen is prevalent in the area of populations, the subspecies is considered to be
susceptible to the pathogen.
Powerline maintenance is a potential threat to Populations 2 and 3. Disturbance during maintenance may
encourage weed invasion and also directly damage plants. Western Power has been notified of the
Salinity is a potential threat to Population 3. The vegetation in the reserve where the subspecies occurs is
being impacted by salinity with EM38 readings ranging from 52 to 92 (slightly saline). It is not known how
Verticordia fimbrilepis subsp. fimbrilepis will respond to changes in soil salt levels.
of Population 4 is located near a property gate and maintenance may damage the population. Herbicide and
fertilizer applied on properties adjacent to Populations 4 and 12 have the potential to drift onto the road
Gavel extraction is a threat to Population 13 as it occurs in an active gravel pit. The subspecies may be
damaged or completely removed during this process, and the risk of increasing the spread of dieback
disease through the area is increased. Gravel extraction is also a potential risk to Subpopulation 8c as the
area is a possible future source of gravel for the Shire.
The intent of this plan is to provide actions that will deal with immediate threats to Verticordia fimbrilepis
directly to prevent the impact of climate change are beyond the scope of this plan.
Table 2. Summary of population information and threats
1. West of Woodanilling Shire Road
2. West of Woodanilling Shire Road
Road maintenance, weeds, powerline
3. South of Arthur River Nature
4. SE of Aldersyde
grazing (rabbits), weeds
5a. NE of Kojonup
Road maintenance, weeds
5b. NE of Kojonup
6. East of Narrogin
7a. SE of Aldersyde
Road maintenance, weeds, grazing
7b. SE of Aldersyde
8b. West of Aldersyde
Road maintenance, weeds
8c. West of Aldersyde
8d. West of Aldersyde
8e. West of Aldersyde
9. West of Brookton
10. NE of North
11. NE of North
12. West of Woodanilling Shire Road
Road maintenance, weeds, farming
13. East of Aldersyde
Road maintenance, weeds, grazing, gravel
14a. South of Pingelly
14b. South of Pingelly
14c. South of Pingelly
110+ (9) 
Phytophthora dieback, grazing (rabbits)
15. North of Kojonup
16. SE of Armadale
Note: * = total for both subpopulations, ( ) = number of seedlings, [ ] = number dead, MRWA = Main Roads Western Australia.
Guide for decision-makers
Section 1 provides details of current and possible future threats. Development and/or land clearing in the
should not be approved unless the proponents can demonstrate that their actions will not have any significant
negative impact on the subspecies, its habitat or potential habitat or on the local surface hydrology, such that
drainage in the habitat of the subspecies would be altered.
Habitat critical to the survival of the species, and important populations
It is considered that the habitat for populations 4, 5, 7, 8, 10, 11, 12, 14 and 16 is critical to the survival of
to the survival of V. fimbrilepis subsp. fimbrilepis includes the area of occupancy of these populations, areas of
similar habitat surrounding these populations (these providing potential habitat for population expansion and for
pollinators), additional occurrences of similar habitat that may contain undiscovered populations of the
subspecies or be suitable for future translocations, and the local catchment of these populations for the surface
and/or groundwater that maintains the habitat of the subspecies.
Benefits to other species or ecological communities
Recovery actions implemented to improve the quality or security of the habitat of Verticordia fimbrilepis subsp.
Rare Flora (DRF) species and 15 Priority flora taxa occur within 500 m of V. fimbrilepis subsp. fimbrilepis.
These taxa are listed in the table below:
Table 3. Conservation–listed flora species occurring within 500m of Verticordia fimbrilepis subsp.
Banksia dallanneyi subsp. agricola
Calytrix sp. Jingaring
Stylidium emarginatum subsp. exappendiculatum
Trichocline sp. Treeton
Anigozanthos bicolor subsp. exstans
Grevillea manglesii subsp. dissectifolia
For a description of the Priority categories see Atkins (2008).
Ecological Community (PEC). This PEC is described as Claypans with mid dense shrublands of Melaleuca
Table 4: Threatened Ecological Communities that Verticordia fimbrilepis subsp. fimbrilepis occurs near
Claypans with dense shrublands of Melaleuca lateritia
For a description of the PEC categories see DEC (2007)
This plan is fully consistent with the aims and recommendations of the Convention on Biological Diversity,
Convention. The subspecies is listed under Appendix II in the United Nations Environment Program World
Conservation Monitoring Centre (UNEP-WCMC) Convention on International Trade in Endangered Species
(CITES), however this IRP does not affect Australia’s obligations under any other international agreements.
A search of the Department of Indigenous Affairs Aboriginal Heritage Sites Register has identified two sites of
(#19933) a historical camp (open, no restrictions) and Nalya/Brookton (#5718) man-made structure (open, no
Input and involvement has been sought through the South West Aboriginal Land and Sea Council (SWALSC)
be completed before the approval of the IRP, further consultation has been included as a recovery action to
ensure there has been Indigenous engagement in relation to the recovery actions posed in this plan.
Social and economic impacts
As subpopulation 5b occurs on private property; and Population 13 occurs on land where gravel is extracted, the
sites of Aboriginal significance also occur in the areas of Populations 3 and 7 and recovery actions may
potentially impact on Indigenous interests.
Affected interests are relevant Indigenous groups, local Shires, Western Power, Main Roads WA, Department
The DEC in conjunction with the Swan Region Threatened Flora and Communities Recovery Team
performance of this IRP. In addition to annual reporting on progress and evaluation against the criteria for
success and failure, the plan will be reviewed following four years of implementation.
The objective of this Interim Recovery Plan (IRP) is to abate identified threats and maintain or enhance in situ
Criteria for success: The number of populations have increased and/or the number of mature individuals have
increased by ten percent or more over the term of the plan.