Swan Region Threatened Flora and Communities Recovery Team
Submission date 31 March
A/Program Leader Nature Conservation,
Swan Region, DEC Kensington
Nature Conservation Coordinator, DEC, Swan
Nature Conservation Coordinator, DEC, Perth
Principal Ecologist, Species and Communities
Branch, DEC Kensington
Coordinator, Threatened Flora, DEC Kensington
Curator, WA Herbarium, Kensington
Conservation Officer, DEC, Perth Hills District
Conservation Officer, DEC, Swan Coastal District
Fred & Jean Hort
achievements for the
previous 12 months
suitable for publication
in WATSNU and
contribution to DEC
annual report. Provide
number of new
63 populations/subpopulations of 16 Threatened taxa and 30 populations/sub
there had been a 455% increase in plant numbers at Population 1a of Acacia
Population 1b, which has been subjected to minimal disturbance, has decreased in
size by 50%.
14 new populations of Threatened and Priority taxa were located. Of note, 6 new
DEC volunteers, Fred and Jean Hort. Stylidium rubricalyx was previously only known
from a couple of herbarium collections and one confirmed population, so the
discovery of new populations is a significant find
Weed control was successfully completed at various locations to protect 5 threatened
does not appear to be adversely impacting D. andrewsii.
Fences, gates and barriers were installed erected to restrict access into populations of
seedlings of Grevillea flexuosa to prevent grazing by kangaroos.
Research was continued into the fire response of a number of taxa. Burn trial plots
threatened and priority taxa to fire.
Swan Coastal District- Highlights
Threatened and Priority Flora
20 populations/subpopulations of 8 Threatened taxa and 41 populations/sub
plant numbers were recorded in populations of Chorizema varium (up to 89%) and
fire surveys for Diuris purdiei failed to locate any plants. Critical habitat was extended
along with significant increases in estimated plant numbers for Eremophila glabra
subsp. chlorella (Pop’n 2), and Trithuria occidentalis.
Additional Critical Habitat was surveyed for two Threatened taxa (Banksia mimica and
(Caladenia huegelii, Calytrix breviseta subsp. breviseta, Lepidosperma rostratum,
recordings or requests.
Habitat and plant numbers for the Priority 1 taxa, Leucopogon maritimus has been
observed within boundary extents and could be due to the drying climate. Potentially
seven new populations of two Priority taxa (Gastrolobium sp. Harvey and Grevillea
thelemanniana subsp. thelemanniana) were surveyed.
Full surveys have now been completed for Synaphea sp. Pinjarra Plain (P1) and S.
an upgrade of conservation status for both plants.
Weed Control, weed mapping, fencing and fence repair were undertaken within
Threatened and Priority Ecological Communities
Operational works during 2012 to map and control weeds, establish and repair
reserves to benefit 12 TECs and five PECs.
Weed mapping was carried out within five reserves to benefit TECs SCP20a, 20b and
Control of weeds including Acacia spp. (Eastern States varieties), Chamaecytisus
Lovegrass), Euphorbia terracina (Geraldton Carnation weed), Gomphocarpus
bulbous species, was undertaken within 14 reserves to benefit TECs SCP3a, 3c, 7, 8,
15, 18, 20b, Mound Springs, Muchea Limestone and PECs SCP21c (P3), 22 (P2),
23b (P3) and 25 (P3).
15, 20a, 20b, and PECs SCP21 (P3), 22 (P2), 23b (P3), 24(P3), 25 (P3).
List of recovery actions coordinated by Recovery Team
Detail under the headings below the recovery actions undertaken during the reporting period. Provide
separate detail for each species/community against each action. For species/community-specific recovery
teams, the generic activity types below can be replaced by the specific recovery actions from the recovery
plan where appropriate.
Monitoring and survey of existing and
new populations/ occurrences,
targeted surveys, critical habitat
Pultenaea pauciflora 5*, 22, 24, 25 – All populations have
required for Chittering populations. Kalamunda populations
(11a-f) appear to be stable.
surveyed quite late in season, follow up required for pre burn
extent for population 1. Plants found to extend over 1km past
this population through illegal 4WD access, despite attempts to
populations have decreased slightly in size since last surveyed
Grevillea curviloba subsp. incurva 8a, 8b, 9a, 9b, 9c, 10, 11.
Acacia aphylla - 22a, 22b and resurvey of population recorded
2011 not assigned population number as yet.
since previous survey.
Verticordia fimbrilepis, 10*, 11 - Populations appear stable
Acacia chapmanii subsp. australis 1a and1b. 1a had a 455%
increase in size, 1b had a 50% decrease in size, presumably
attributed to the lack of disturbance at this site.
Anthocercis gracilis – 1, 2 3, 6.
Banksia aurantia 2*,4*,5* - Populations appear stable
Conospermum undulatum 16a* and 16N*.
Grevillea bracteosa subsp. bracteosa 14a* and 14B* - Increase
for 14a (45%). Decrease recorded 14b (47%)
16 taxa, 63 populations/subpopulations
Stylidium sp. Boulder Rock (P2) - 2 populations*
Verticordia citrella (P2) - 2 populations*
15 taxa, 30 populations/sub populations
*= pre/post burn survey
Surveys for new populations
Cyanicula ixioides subspecies candida – Surveys completed over
Dale located which looks similar but unable to locate C. ixioides
6 new populations located (see below).
Grevillea althoferorum subsp. fragilis – Areas of suitable habitat
14 New Populations found for 7 species
new subpopulations reported in Parkerville on private property.
Stylidium rubricalyx (P1) - 6 new populations found in Wandoo
plants located. Significant find as previously only known from
one herbarium collection.
by Fred and Jean Hort at Bullsbrook NR.
Platysace ramosissima (P3) - 1 new population found by Fred
National Park by Fred and Jean Hort.
Cyanicula ixioides subsp. ixioides (P4) 1 new population found in
subpopulation confirmed in Bindoon Defence training area (found
SWAN COASTAL DISTRICT
Monitoring - Threatened Flora
Targeted surveys were undertaken of the following:
recently acquired by DEC. This population showed signs of
stress with 22% of plants recorded being in poor condition and a
further 7% were dead.
Chorizema varium (Populations 1a, b, c; 2a, b, c; 3a, b). Plants in
populations fluctuated with both significant increases (30% -
89.1%) and decreases (23% - 103%) occurring. (Note: in some
populations, plant numbers have been estimated). The highest
increase was recorded for Population 2a where a recent wildfire
Conospermum undulatum (Population 2) was surveyed post- fire.
juveniles making up 27% of the population.
Diuris purdiei (Populations 10a, c) was surveyed post-fire for the
excellent with stable plant numbers.
Eremophila glabra subsp. chlorella (Populations 2a, b, c, 5).
Plant numbers within Population 2 have significantly increased
(>200%) however, the area extent was also increased. The
overall condition of this population was healthy, although
stressed and dead plants were observed in areas bordering
saline communities and impacts of grazing were clearly evident.
known populations. Plant numbers in Population 1 have
increased from the 2006 survey by 15 (62%) with juveniles
making up 13% of the population. Plant numbers in Population 2
decreased from the 2005 survey by 11 (73%) with no juveniles
recorded. (It must be noted that previous plant numbers were
given as estimates).
known location of this population was mapped and resulted in an
increase of plant numbers by 36%. It must be noted that
numbers will fluctuate seasonally for this annual, short-lived
species. However, as it is the only known population, any
increase is favourable.
Critical habitat was surveyed for:
Banksia mimica on land recently acquired by DEC prior to
fencing. No plants were found.
potentially suitable habitat, around southwest claypans within
local government and DEC reserves. No plants were found.
New populations were surveyed of the following:
Caladenia huegelii (1 population) on land proposed for
Lepidosperma rostratum (2 populations) on private property.
Synaphea stenoloba (1 population) on local government land.
Tetraria australiensis (3 populations) on road and rail reserves.
Targeted surveys were undertaken of the following:
Leucopogon maritimus (P1).Three locations from Florabase
Habitat was increased significantly as a result. Plant numbers are
yet to be calculated, however, a significant number of dead
plants were observed at two of the sites. Further survey is
investigated to complete a full survey of this species initiated in
2011. A Threatened Species Nomination Form has been
submitted to raise the conservation status to Critically
Endangered. A total of 715 mature individuals were recorded. Of
these, 175 individuals (24.4%) are in poor condition. In addition,
a further 75 individuals (9.4%) were dead.
2010. A Threatened Species Nomination Form has been
Endangered. A total of 1,328 mature individuals were recorded.
Of these 125 (9.4%) are in poor condition. In addition, a further
397 individuals (29.8% of the total population) were dead.
Gastrolobium sp. Harvey (P2) (5 potential populations)
populations) on private property.
control/mapping, fencing/ repairs,
disease management, feral/
introduced animal control, installation
of roadside markers
Threat amelioration- Threatened and Priority Flora
to protect Grevillea althoferorum subsp. fragilis and Verticordia
controlled at Burnside Nature Reserve protecting a population of
restrict access to Drummonds Nature reserve which contains 2
Threatened taxa, Acacia chapmanii and Eleocharis keigheryi.
which contains populations of Chamelaucium sp. GinGin.
10 cages installed around seedlings at Grevillea flexuosa
was fenced to exclude off-road vehicles.
Watsonia sp. and Rubus ulmifolius (Blackberry) control
populations of Lasiopetalum pterocarpum (1a to 1f).
4WD Access blocked to Tribonanthes purpurea population at
Park containing population 1a and 1b of Conospermum
with Melaleuca lateritia mid dense shrubland over herbs
Access restricted through the installation gates and fences at
Drummonds Nature Reserve to two Priority 1 Ecological
Communities “Claypans with mid dense shrublands of Melaleuca
sedges of Mesomelaena preissii.”
Control of Hesperantha falcata within Bullsbrook Nature reserve
Park containing the TEC “Banksia attenuata woodland over
species rich dense shrublands.” The following weeds were
controlled: Watsonia spp.,
Hyparrhenia hirta (
Love Grass), Freesia sp.,
Control of Watsonia sp. at Meelon Nature reserve which contains
the TEC, SCP08 Herb rich shrublands in clay pans.
Nature Reserve in 2012, in liaison with the Friends of Group and
Urban Nature. Talbot Nature Reserve contains the Critically
SCP20c “Shrublands and woodlands of the
Threat amelioration - Threatened and Priority Flora
Weed control, weed mapping and fence establishment or repair was
undertaken in various reserves and will benefit the following Threatened
and Priority Flora.
Drakaea elastica, Caladenia huegelii, Conospermum undulatum,
Darwinia foetida, Diuris purdiei, Grevillea curviloba subsp. curviloba, G.
curviloba subsp. incurva, Lepidosperma rostratum, Macarthuria keigheryi,
Tetraria australiensis, Trithuria occidentalis, Synaphea stenoloba,
Synaphea sp. Fairbridge Farm.
Acacia benthamii (P2), Acacia lasiocarpa var. bracteolata (P1),
Blennospora doliiformis (P3), Cardamine paucijuga (P2), Cyathochaeta
teretifolia (P3), Dillwynia dillwynioides (P3), Eryngium subdecumbens
(P3), Gastrolobium sp. Harvey (P2), Johnsonia pubescens subsp.
Pinjarra Plain (P1), S. sp. Serpentine (P3).
Threat amelioration - Threatened & Priority Ecological Communities
Weed control and weed mapping of various species of woody and non-
woody weeds, fencing and rubbish removal were undertaken within DEC
managed estate to benefit TECs and PECs.
heavy soil, Swan Coastal Plain. Weed control in Greater Brixton
St. wetlands, Lambert Lane Reserve and Roman Rd. Reserve.
Rubbish removal at Greater Brixton St. wetlands.
SCP3b: Eucalyptus calophylla – Eucalyptus marginata
Plain. Weed mapping in Cardup NR. Fencing at Kooljerrenup
and shrublands, Swan Coastal Plain. Weed control in EllenBrook
NR and Roman Rd. Reserve,
and fencing at Carrabungup NR,
SCP08: Herb rich shrublands in clay pans. Weed control in
St. wetlands. Fencing at Forrestdale Lake Reserve. Rubbish
removal at Greater Brixton St. wetlands.
Lake Reserve and Kooljerrenup NR.
SCP15: Forests and woodlands of deep seasonal wetlands of
SCP18: Shrublands on calcareous silts of the Swan Coastal
shrublands. Weed mapping in Hawkevale NR. Fencing at Errina
woodlands of the eastern side of the Swan Coastal Plain. Weed
control in Lambkin NR, Watkins Rd. Reserve and Roman Rd.
Reserve. Weed mapping in Cardup NR. Fencing at Watkins Rd.
Mound Springs, Swan Coastal Plain). Weed control in Neaves
Limestone. Weed control in Muchea NR,
SCP21c: Low lying Banksia attenuata woodlands or shrublands
Plain (P2). Weed control and weed mapping in Melaleuca Park.
Fencing at Beermullah Reserve.
Weed control and weed mapping in Melaleuca Park. Fencing at
Fencing at Nowergup Reserve.
SCP25: Southern Swan Coastal Plain Eucalyptus
control in Muchea NR and Paganoni NR. Weed mapping and
fencing at Leda NR.
Conservation and research e.g.
fire research, translocation, ex-situ
Anthocercis gracilis (VU) Pop1: 1 existing burn plot monitored as
monitored for pre-burn.
Verticordia fimbrilepis subsp. fimbrilepis (VU) Pop10: 7 plots
pre-burn and monitored post-burn.
Acacia oncinophylla subsp. patulifolia (P3) Pop 12: 1 plot
Weed control trial
DPA to control Watsonia within these populations was trialled in 2011
and 2012. The objective of this trial is to assess the impact of 2-2DPA on
D. andrewsii and to monitor recruitment of D. andrewsii seedlings
following Watsonia control. Initial monitoring has indicated that 2-2 DPA
has not impacted on D. andrewsii.
SWAN COASTAL DISTRICT
undertaken close to the boundary of the TEC Muchea Limestone.
Assistance was given to Andrew Crawford to collect seeds of
was completed and analysed to verify inferred TECs.
Liaison, education/provision of
advice e.g. promotional material inc
newspaper/ magazine articles, liaison
with land managers/ owners, input to
impact assessment, development of
specific management plans,
volunteers assisting with surveys/
PERTH HILLS DISTRICT
Reserve 19904, which contains populations of Grevillea flexuosa.
Liaison with Darling Range Wildflower Society in relation to a
to monitor populations of Thelymitra magnifica, Thelymitra
DFES, City of Swan, Shire of Serpentine Jarrahdale, Shire of
Kalamunda, Shire of Toodyay and Brookfield Rail in relation to
rare flora populations.
SWAN COASTAL DISTRICT
Liaised with and gave assistance to DEC volunteers from the
Mandurah office to survey for various Threatened and Priority
flora and to establish plots for the compilation of Flora and
Vegetation inventories for reserves in the south-west of the Swan
Liaised with various land managers including Western Power,
Brookfield Rail, WA Herbarium officers and specialist
taxonomists in relation to surveys of and potential impacts of
proposed works to Threatened and Priority flora and ecological
Land use/tenure changes e.g.
covenants, acquisitions, changes in
land use or listed purpose etc.
nominations for additions, deletions or
change in status to state threatened
or priority lists; changes to EPBC list
Two DRF gazetted: Hypocalymma sylvestre (P1 to CE) and Leucopogon
sp. Flynn (P2 to CE)
Nomination Forms for a change in status to Critically Endangered were
recovery plans/ IRPs drafted,
approved, reviewed or updated
Interim recovery plans were reviewed and approved for Caladenia sp.