Western australian wildlife management program no. 21 Declared Rare and Poorly Known Flora in the Esperance District



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Known Populations (cont’d)

369
Pop.
Land
Last
No. of
No.
Population District
Shire
Status
Survey
Plants
Condition
14
Grass Patch,S 
Esp
Esp
MRWA Rd Res.
17.11.92
5
Good
15a
Salmon Gums 
Esp
Esp
-
24.9.92
-
-
15b
Salmon Gums
Esp
Esp
Research Stn
10.8.51
-
-
16
Kumarl Esp
Esp
-
7.38
-
-
17a
Fields Rd 
Esp
Esp
VCL
13.9.92
15
Fair
17b* Fields Rd
Esp
Esp
VCL
19.9.93
5+
Good
17c* Fields Rd
Esp
Esp
VCL
20.9.93
5+
Good
18
Dunn Swamp,E 
Esp
?Esp
?VCL
15.11.80
Rare
-
19*
Fields Rd 
Esp
Esp
Shire Rd Res.
14.9.92
2
Vulnerable
20*
Parmango Rd 
Esp
Esp
Shire Rd Res.
14.11.93
20+
Good
21*
Grass Patch,W 
Esp
Esp
Shire Rd Res.
24.9.92
1
Fair
22*
Scaddan,N 
Esp
Esp
MRWA Rd Res.
24.9.92
3
Good
23*
Scaddan,N 
Esp
Esp
MRWA Rd Res.
24.4.92
5+
Good
24*
Mt Burdett,S 
Esp
Esp
Shire Rd Res.
25.9.92
5+
Good
25*
Balladonia Rd 
Esp
Esp
NP
24.4.93
15+
Good
26*
Balladonia Rd 
Esp
Esp
NP
24.4.93
5+
Good
27*
Mt Heywood,NW 
Esp
Esp
VCL
22.5.93
3+
Good
28*
Sheoak Hill,N 
Esp
Esp
VCL
22.5.93
Occasional
Good
29*
Mt Ridley,W 
Esp
Esp
VCL
23.5.93
5+
Good
30*
Mt Buraminya 
Esp
Esp
VCL
14.11.93
1
Good
31*
Salmon Gums,W 
Esp
Esp
Shire Rd Res.
17.11.92
5+
Good
32*
Cascades Rd 
Esp
Esp
NR
9.9.93
20
Good
* = new population / sub-population
Response to Disturbance
Following fire, 
A. pritzeliana resuckers; some plants (pop. no. 7d) were observed to have spent pods and were again
flowering 28 months after fire.
Susceptibility to Phytophthora Dieback
Presumed not susceptible.
Summary and Recommendations
A. pritzeliana is widely distributed north-west and north-east of Esperance.  Rather than having discrete populations,
this species tends to have only a few scattered plants at any locality, which may account for it being poorly known.
This species is known to occur in three Nature Reserves and in Cape Arid National Park where it is relatively common
and not threatened.
References
Gardner (1939b).

370
Acacia singula R.S.Cowan & Maslin
MIMOSACEAE
An erect shrub, 0.4-2 m tall.  Phyllodes ('leaves') are linear (25-45 x 1.5-4 mm) and sometimes slightly wider towards
the apex, semi-rigid, the 1-7 nerves are slightly to strongly raised and the tip has a fine curved point.  The golden flower
heads are oval to oblong (6-9 x 4-4.5 mm), solitary in the phyllode axils on stalks that are short (to 3 mm) or absent.
Flowers are 4-merous.  Legumes are linear (to 65 x 3.5 mm wide) and strongly raised over and constricted between the
seeds.  Seeds are broadly elliptic (3 mm), arranged longitudinally in the legume, and dull black with an appendage (aril)
two-thirds as long as the seed.  
Acacia singula is closely related to A. multispicata which has cylindrical to compressed phyllodes, paired flower heads
(spikes) in each axil, longer legumes and proportionately shorter appendages on the seeds.
Flowering Period:  August - October 
Distribution and Habitat
A. singula occurs between Lake Grace and Cascade, a range of about 220 km.  It grows in gravelly sand over laterite,
sometimes on rises and hilltops, in heath, scrub and mallee shrubland communities.
Conservation Status
Current:  Priority 3
Known Populations
Pop.
Land
Last
No. of
No.
Population District
Shire
Status
Survey
Plants
Condition
1
West Point Rd 
Esp
Esp
Shire Rd Res.
11.9.92
500+
Post-dist.
2
Hatter Hill 
Esp
Rav
-
27.10.92
1000+
Good
3
Hatter Hill,N 
Esp
Rav
VCL
8.12.84
Frequent
-
4
Sth Ironcap,S 
Mer
Kon
VCL
8.12.84
-
-
5
Lake Grace,E 
Kat
LG
MRWA Rd Res.
13.9.80
-
-
6
Lake King,N 
Kat
LG
?MRWA Rd Res.
16.9.64
-
-
7
Lake King,S 
Kat
LG
?MRWA Rd Res.
6.10.66
-
-
8
Lake King,W 
Kat
LG
?MRWA Rd Res.
11.9.64
-
-
9
Newdegate,SW Kat
LG
NR
1.79
-
-
Response to Disturbance
Plants regenerate well in disturbed areas but may be vulnerable to further clearing.
Susceptibility to Phytophthora Dieback
Presumed not susceptible.
Summary and Recommendations
The known populations of 
A. singula are widely distributed.  In the Esperance District both of the known populations
are vulnerable.  The Hatter Hill population (no. 2) is threatened by clearing from mining activities.  A portion of the
West Point Rd population (no. 1) coincides with a Shire gravel pit.  Monitoring of these populations and further survey
are required. 

371
Adenanthos gracilipes A.S.George
PROTEACEAE
An erect shrub, to 1.5 m tall, with a lignotuber.  Branches are sparsely covered with short hairs when young which
disappear with age.  Leaves are rigid, cylindrical (20 mm) and mostly divided into 3 segments which are again divided
in two.  Flowers are solitary or rarely in pairs and borne on short stalks (3 mm) at the ends of branches.  The perianth
(17-18 mm) is cream or pink at the swollen base and the narrow tube is red-pink and covered in white hairs on the
outside; inside is hairless.  The ovary (1 mm) is hairy and the style (30 mm) lacks hairs.
Flowering Period:  July - March
Distribution and Habitat
Adenanthos gracilipes is distributed between Lake Cronin and Peak Charles, a range of 150 km.  It grows in deep
siliceous sand in open mallee-heath.  Associated species include 
Callitris spp., Hakea corymbosa, Melaleuca subtrigona
and 
Calytrix decandra.
Conservation Status
Current:  Priority 3
Known Populations
Pop.
Land
Last
No. of
No.
Population District
Shire
Status
Survey
Plants
Condition
1
90 Mile Tank,E 
Esp
Esp
VCL
15.9.64
-
-
2
Peak Charles,N
Esp
Esp
NP & VCL
18.9.93
500+
Post-fire
3a
Frank Hann 
Esp
Esp
NP
16.9.93
100+
Good
3b
Frank Hann
Esp
Esp
NP
17.9.93
20+
Good
4
Tadpole Lake,S 
Esp
Esp
NP
21.7.79
Frequent
-
5
Round Top Hill,SSW 
Esp
Dund
VCL
1.11.79
Scattered
-
6
Hyden,E Esp
Dund
VCL
7.9.73
-
-
7
Forrestania,E Esp
Dund
VCL
25.11.64
-
-
8
Lake Hope 
Esp
Dund
VCL
18.1.78
-
-
9
Lake Varley-Lake King
Kat
LG
-
1965
-
-
Response to Disturbance
Thirty-two months after a hot fire in January 1991, plants which had resuckered from rootstock were flowering; no
seedlings were seen.
Susceptibility to Phytophthora Dieback
Presumed susceptible.
Summary and Recommendations
A. gracilipes appears widespread in Frank Hann National Park and in Crown Land to the north and east, a remote area
which has been poorly surveyed due to the lack of access.  At present, this species does not appear to be threatened.
References_George_(1974),_Nelson_(1978).__372__Allocasuarina_eriochlamys'>References
George (1974), Nelson (1978).

372
Allocasuarina eriochlamys
CASUARINACEAE
subsp. 
grossa (L.A.S.Johnson) L.A.S.Johnson
A dense shrub or small tree, to 3 m tall.  Articles (a section of modified stem that breaks at a joint) are 9-18 mm long
and 1 mm diameter, not ridged; there are 8-11 teeth (0.5-1 mm).  Male spikes (16-35 mm) have 10-11 whorls per cm.
Cones (20-30 x 14-21 mm) are borne on stalks (4-15 mm); bracts are thickened laterally so that the base appears 2-
lobed; bracteoles protrude prominently beyond the cone body, have an acute apex and an indentation below the apex.
Allocasuarina eriochlamys subsp. grossa is distinguished from A. campestris by having more prominent and thicker
cone bracts, and the bracteole has an indentation below the apex whereas it is close to the apex in 
A. campestris.  Cones
are smaller (16 x 13 mm) in 
A. campestris.
Flowering Period:  Not known
Distribution and Habitat
A. eriochlamys subsp. grossa grows on granite outcrops near Norseman and west of Coolgardie, a range of 160 km.
Associated species include 
Eucalyptus websteriana, A. helmsii and A. campestris.
Conservation Status
Current:  Priority 3
Known Populations
Pop.
Land
Last
No. of
No.
Population District
Shire
Status
Survey
Plants
Condition
1a
Norseman,N Esp
Dund
-
8.9.66
-
-
1b
Norseman,NE
Esp
Dund
-
29.8.74
-
-
1c
Norseman,E
Esp
Dund
-
6.9.62
-
-
1d
Norseman
Esp
Dund
-
2.35
-
-
1e
Beacon Hill
Esp
Dund
-
4.9.68
-
-
2
Woolyeenyer Hill 
Esp
Dund
-
14.3.80
Scattered
-
3
Sinclair Soak,NE 
Esp
Dund
-
10.8.80
Common
-
4
Zanthus-Cocklebiddy Esp
Dund
-
10.64
-
-
5a
Bulla Bulling,W 
Gold
Cool
-
7.9.66
-
-
5b
Bulla Bulling
Gold
Cool
-
4.63
-
-
Response to Disturbance
Unknown
Susceptibility to Phytophthora Dieback
Unknown
Summary and Recommendations
A. eriochlamys subsp. grossa is poorly collected, which may be due to its similarity to A. campestris which is common
and widespread in the same range as this taxon.  It is not known to occur in any conservation reserve.  Further survey is
required.
References_Wilson_(1970).__376__Caladenia_longicauda'>References
Wilson and Johnson (1989).

373
Banksia lullfitzii C.A.Gardner
PROTEACEAE
A dense, rather tangled shrub, 1.5 m tall, with a lignotuber.  Branches are rigid, erect and covered in soft hairs.  Leaves
are scattered, linear (200-450 x 8-18 mm), hairy becoming smooth, dentate with well spaced, sharp-pointed, regular
teeth.  The golden-orange to orange-brown flower heads are ovoid-cylindrical (4-13 x 8-10 cm), hidden amongst the
foliage and borne on erect short branchlets.  The perianth (34-49 mm including limb of 5-6 mm) is hairy outside and
smooth inside.  Up to 30 elliptic fruits (15-25 x 8-10 mm) are borne per head.
Banksia lullfitzii is closely related to B. elderiana which has very similar leaves, but the yellow flower heads are
pendulous and the perianth lacks hairs.
Flowering Period:  March - May
Distribution and Habitat
B. lullfitzii is distributed from north of Koolyanobbing to near Ravensthorpe, a range of over 300 km.  It grows in yellow
sand on plains, in heath and tall shrubland communities.
Conservation Status
Current:  Priority 3
Known Populations
Pop.
Land
Last
No. of
No.
Population District
Shire
Status
Survey
Plants
Condition
1
Koorarawalyee Gold
Cool
-
16.5.66
-
-
2
Boorabbin Gold
Cool
NP
3.10.73
-
-
3
Queen Victoria Rock,S 
Gold
Cool
-
-
-
-
4
Yellowdine,E Mer
Yil
-
4.2.66
-
-
5
Bungalbin Hill,NE 
Mer
Yil
VCL
22.9.81
1
-
6
Brontie Mer
Yil
Pastoral 
Lease
14.12.26
-
-
7
Aurora Range,NE
?Mer
Yil
-
-
-
-
8
Duri,S Gold
Cool
VCL
23.9.79
Rare
-
9
Vermin Proof Fence 
Esp
Rav
?VCL
11.67
-
-
?10
Ninety Mile Tank,W 
Esp
Dund
?NP
1991
-
?Burnt
Response to Disturbance
According to George (1987), 
B. lullfitzii is fire-tolerant, resprouting from a lignotuber.
Susceptibility to Phytophthora Dieback
Presumed susceptible but occurs outside the area where 
Phytophthora is likely to be a threat.
Summary and Recommendations
B. lullfitzii is poorly known.  A population is recorded in the Banksia Atlas (Taylor 1985) as occurring near Ninety Mile
Tank; there is no specimen in the Western Australian Herbarium to authenticate this locality.  A fire in January 1991
burnt Ninety Mile Tank and surrounding areas.  Resurvey is required once populations are reproductively mature.  In
1993, surveys in the general area found 
B. elderiana only. 
Leigh 
et al. (1984) recommended an extension of the western edge of the Boorabbin National Park to include the
Koorarawalyee population.
Further survey is required. 
References
George (1981, 1987), Holliday and Watton (1975), Leigh 
et al. (1984), Taylor (1985).

374
Boronia fabianoides (Diels) Paul G.Wilson
RUTACEAE
A low shrub, 15-40 cm tall, with branches sparsely to densely covered in short hairs.  The yellow-green leaves are near-
opposite or alternate, frequently crowded, slender-cylindrical (5-15 mm), covered in small wart-like protuberances and
lack hairs.  The small flowers are axillary and borne on short stalks (1-2 mm).  The 4 petals are broadly elliptic (3-5
mm), have a prominent thickened midrib and are usually cream-coloured, but may be pale pink, pale blue or mauve.
The stalks (filaments) of the stamens are fringed with hairs; the hemispherical ovary (1 mm) is shiny with a minute style
(0.5 mm).  Seed is ellipsoidal (2 mm).
Flowering Period:  September - December
Distribution and Habitat
Boronia fabianoides is mainly distributed between Salmon Gums and Clyde Hill, a range of about 120 km.  Two
populations have been found between Norseman and Balladonia.  It grows on flat or undulating plains in brown
calcareous loam, in woodland and shrub communities.  Associated species include 
Eucalyptus oleosa, Melaleuca
uncinata, Westringia rigida, Spyridium mucronatum, S. minutum and Acacia profusa.
Plants with affinity to 
B. fabianoides have been found further north, near Norseman and the Woodline Hills.
Conservation Status
Current:  Priority 3
Known Populations
Pop.
Land
Last
No. of
No.
Population District
Shire
Status
Survey
Plants
Condition
1
Grass Patch,N 
Esp
Esp
-
2.11.01
-
-
2
Grass Patch,S 
Esp
Esp
MRWA Rd Res.
23.9.92
10+
Good
3*
Grass Patch,W 
Esp
Esp
Shire Rd Res.
24.9.92
2
Disturbed
4*
Truslove,N 
Esp
Esp
MRWA Rd Res.
23.9.93
15
Good
5*
Clyde Hill,NW 
Esp
Esp
VCL
20.5.93
10+
Disturbed
6a
Clyde Hill,NW 
Esp
Esp
VCL
20.5.93
15+ Seedl.
Post-fire
6b
Mt Heywood,NE
Esp
Esp
VCL
9.11.80
Scattered
-
6c*
Mt Heywood,NE
Esp
Esp
VCL
21.5.93
5+
Good
7a
Clyde Rock Rd 
Esp
Esp
VCL
8.84
-
-
7b*
Clyde Hill,NW
Esp
Esp
VCL
20.5.93
10+ Seedl.
Post-fire
8
Cox Rd 
Esp
Esp
?Shire Rd Res.
15.10.82
-
-
22.9.92
Not found
-
9
Salmon Gums,ENE 
Esp
Esp
NR
18.11.93
2+
Good
10*
Norseman,ENE 
Esp
Dund
MRWA Rd Res.
17.11.93
1
Good
11
Balladonia,NW Esp
Dund
-
12.11.76
-
-
12
Dundas-Lake Lefroy 
Esp
Dund
-
1893
-
-
* = new population / sub-population
Response to Disturbance
Readily grows in situations that have been disturbed, for example, along the edges of tracks.  Twenty-eight months after
a fire (January 1991) north-west of Clyde Hill, numerous seedlings were found on a track.

375
Susceptibility to Phytophthora Dieback
Unknown
Summary and Recommendations
B. fabianoides is an inconspicuous plant which has been poorly collected.
B. fabianoides occurs on Crown Land north of the agricultural area and is not currently threatened by clearing.  A few
plants have been found on the eastern boundary of the Salmon Gums Nature Reserve.  Further opportunistic survey is
recommended.
References
Wilson (1970).

376
Caladenia longicauda subsp. rigidula Hopper and A.P.Brown ms
ORCHIDACEAE
Rigid White Spider Orchid
A distinctive orchid, 25-40 cm tall.  Each plant has up to 3 white flowers (7-12 x 6-10 cm) with stiffly held petals and
sepals; the dorsal sepal bends forwards over the flower while the rear lower sepals are held backwards horizontally and
the front sepals hang down; the long labellum fringe and calli are red-purple.  Leaves are 10-25 cm long and 6-20 mm
wide.
Similar taxa which grow in the same range as 
Caladenia longicauda subsp. rigidula ms are:  subsp. australora ms
which has all 4 lower sepals hanging down; and the smaller flowered (4-6 x 4-5 cm) 
C. cruscula ms which has a
reclining habit.  
Flowering Period:  August - October 
Distribution and Habitat
C. longicauda subsp. rigidula is widely distributed along the eastern south coast, between Pallarup Rocks and Mt
Ragged, a range of 350 km.  It grows around rock outcrops and other winter wet areas in sand, loam and sandy clay.
Conservation Status
Current:  Priority 3
Known Populations
Pop.
Land
Last
No. of
No.
Population District
Shire
Status
Survey
Plants
Condition
1
Wittenoom Hills 
Esp
Esp
NR
25.9.92
50+
Good
2
Mt Ney,SW 
Esp
Esp
-
9.8.80
-
-
3
Mt Ney 
Esp
Esp
NR
7.84
-
-
4
Kau Rocks 
Esp
Esp
VCL
1.9.84
-
-
5
Howick Hill 
Esp
Esp
Private
19.9.68
-
-
6
Swamp Reserve 
Esp
Esp
-
1.9.77
-
-
7
Juranda Rockhole 
Esp
Esp
VCL
16.8.80
-
-
8
Pine Hill 
Esp
Esp
NP
16.8.80
-
-
9
Mt Ragged 
Esp
Esp
NP
15.8.80
-
-
10
Sheoaks Hill 
Esp
Esp
NR
14.8.80
-
-
11
Coomalbidgup 
Esp
Esp
Shire Water Res.
9.77
-
-
12
Howick Rd 
Esp
Esp
NR
5.9.78
-
-
13
Swan Lagoon 
Esp
Esp
NR
24.9.92
1000+
Good
14
Ashdale Esp
Esp
-
8.9.65
-
-
15*
Lort River 
Esp
Esp
VCL
20.9.93
4
Good
?16
West River 
Alb
Rav
VCL
19.8.77
-
-
17
Ravensthorpe,E Alb
Rav
-
22.9.79
-
-
18
Pallarup Rock 
Kat
LG
NR
6.9.84
30
-
* = new population
Response to Disturbance
Unknown

377
Susceptibility to Phytophthora Dieback
Presumed not susceptible.
Summary and Recommendations
C. longicauda subsp. rigidula is widespread in the Esperance District.  It has been collected in seven nature reserves and
Cape Arid National Park; it should therefore be secure.  
References
Hoffman and Brown (1992).

378
Centrolepis cephaloformis
CENTROLEPIDACEAE
subsp. 
murrayi (J.M.Black) D.A.Cooke
A small, moss-like annual herb forming dense, rounded tufts, 4-8 mm tall and 8-15 mm wide.  The green leaves are
linear (3-9 mm), sometimes bend backwards, have a sheathing base and a translucent sharp tip.  Flower heads (2-3 x 1-
1.6 mm) are nestled amongst the inner leaves and have only 1 bisexual flower; 2 primary bracts tightly enclose the head;
carpels 8-10; the style is free.
Centrolepis cephaloformis subsp. murrayi can be distinguished from subsp. cephaloformis as it has solitary flowers,
while subsp. 
cephaloformis has 3 flowers per head.  It differs from C. humillima by having 2 floral bracts (not 1), more
numerous carpels and the free style.
Flowering Period:  September - November
Distribution and Habitat
C. cephaloformis subsp. murrayi is known only from four widely separated localities.  It was first collected on North
Pearson Island in South Australia, and has since been found in the Archipelago of the Recherche, near Bremer Bay and
inland from Kalbarri.  It has been found in seepages over granite rock, near a watercourse and on a saline flat.

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