Oakajee Port and Rail
OPR Rail Proposal – Vegetation and Flora Assessment
May 2010
181
impact could have a significant result to the species and therefore has high(b) conservation
significance.
Acacia leptospermoides subsp. psammophila has been recorded in the Geraldton Sandplains
bioregion and is known from 280 individuals at 34 locations. In the Study Area, 23 individuals were
recorded at five locations (8% of the total known individuals). This species is not very common in the
Study Area and impact to it will not result in any significant loss to the species, it therefore has low(a)
conservation significance.
Priority 3 Flora
Acacia speckii has been recorded in the Murchison, Yalgoo and Gascoyne bioregions and is known
from 1,587 individuals at 325 locations. In the Study Area, 706 individuals were recorded at 206
locations (44% of the total known individuals). This species was widely recorded across the Study
Area (the total known distribution spans 410 km) and because of this, despite the large percentage of
the total species population in the Study Area; it is likely to be poorly collected, rather than locally
endemic and therefore has low(b) conservation significance.
Acacia subsessilis has been recorded in the Murchison and Yalgoo bioregions and is known from 882
individuals at 40 locations. In the Study Area, 48 individuals were recorded at 14 locations (5% of
the total known individuals). This species is not very common in the Study Area and impact to it will
not result in any significant loss to the species, it therefore has low(a) conservation significance.
Acanthocarpus parviflorus has been recorded in the Carnarvon and Geraldton Sandplains bioregions
and is known from 715 individuals at 72 locations. In the Study Area, 18 individuals were recorded
at three locations (2.5% of the total known individuals). This species is not very common in the Study
Area and impact to it will not result in any significant loss to the species, it therefore has low(a)
conservation significance.
Arnocrinum drummondii has been recorded in the Geraldton Sandplains and Avon Wheatbelt
bioregions and is known from 101 individuals at seven locations. In the Study Area, 10 individuals
were recorded at one location (10% of the total known individuals). This species is not very common
in the Study Area and impact to it will not result in any significant loss to the species, it therefore has
low(a) conservation significance, especially as a large proportion of the known population is located
within a conservation reserve.
Baeckea sp. Walkaway (A.S. George 11249) has been recorded in the Geraldton Sandplains and Avon
Wheatbelt bioregions and is known from 1,206 individuals at 29 locations. In the Study Area, four
individuals were recorded at two locations (<1% of the total known individuals). This species is not
very common in the Study Area and impact to it will not result in any significant loss to the species, it
therefore has low(a) conservation significance.
Blackallia nudiflora has been recorded in the Geraldton Sandplains bioregion and is known from
2,069 individuals at 28 locations. In the Study Area, 22 individuals were recorded at one location
(1% of the total known individuals). This species is not very common in the Study Area and impact to
it will not result in any significant loss to the species, it therefore has low(a) conservation
significance.
Calytrix erosipetala has been recorded in the Murchison and Yalgoo bioregions and is known from
2,117 individuals at 45 locations. In the Study Area, 109 individuals were recorded at 10 locations
(5% of the total known individuals). This species is not very common in the Study Area and impact to
it will not result in any significant loss to the species, it therefore has low(a) conservation
significance.
Calytrix formosa has been recorded in the Yalgoo, Geraldton Sandplains and Carnarvon bioregions
and is known from 201 individuals at 24 locations. In the Study Area, three individuals were
Oakajee Port and Rail
OPR Rail Proposal – Vegetation and Flora Assessment
May 2010
182
recorded at two locations (1% of the total known individuals). This species is not very common in the
Study Area and impact to it will not result in any significant loss to the species, it therefore has low(a)
conservation significance.
Calytrix uncinata has been recorded in the Murchison and Yalgoo bioregions and is known from
1,252 individuals at 49 locations. In the Study Area, 18 individuals were recorded at six locations
(1% of the total known individuals). This species is not very common in the Study Area and impact to
it will not result in any significant loss to the species, it therefore has low(a) conservation
significance.
Calytrix verruculosa has been recorded in the Murchison bioregion and is known from 1,091
individuals at 62 locations. In the Study Area, 871 individuals were recorded at 51 locations (80% of
the total known individuals). This species was widely recorded across the Study Area and because of
this, despite the large percentage of the total species population in the Study Area; it is likely to be
poorly collected, rather than locally endemic and therefore has low(b) conservation significance.
Dicrastylis linearifolia has been recorded in the Murchison, Yalgoo, Geraldton Sandplains, Gascoyne
and Carnarvon bioregions and is known from 1,720 individuals at 39 locations. In the Study Area,
274 individuals were recorded at 15 locations (16% of the total known individuals). This species was
relatively common in the Study Area, but as the numbers recorded outside the Study Area are rather
well known and widespread, and the percentage of total numbers is low, this species has low(a)
conservation significance in the Study Area.
Dodonaea amplisemina has been recorded in the Murchison, Yalgoo, Gascoyne and Avon Wheatbelt
bioregions and is known from 1,466 individuals at 171 locations. In the Study Area, 754 individuals
were recorded at 96 locations (51% of the total known individuals). This species was relatively
common in the Study Area, but as the numbers recorded outside the Study Area are rather well
known and widespread, and the percentage of total numbers is low, this species has low(b)
conservation significance in the Study Area.
Eremophila arachnoides subsp . arachnoides has been recorded in the Murchison and Little Sandy
Desert bioregions and is known from 266 individuals at 10 locations. In the Study Area, 45
individuals were recorded at four locations (17% of the total known individuals). This species is
moderately common in the Study Area and is likely to be widespread over bioregions, therefore
impact to it will not result in any significant loss to the species, and it has moderate conservation
significance.
Eremophila muelleriana has been recorded in the Murchison bioregion and is known from 593
individuals at 129 locations. In the Study Area, 558 individuals were recorded at 119 locations (94%
of the total known individuals). This species was widely recorded across the Study Area and because
of this, despite the large percentage of the total species population in the Study Area; it is likely to be
poorly collected, rather than locally endemic and therefore has low(b) conservation significance.
Gastrolobium propinquum has been recorded in the Geraldton Sandplains and Avon Wheatbelt
bioregions and is known from 374 individuals at 26 locations. In the Study Area, one individual was
recorded at one location (<1% of the total known individuals). This species is not very common in the
Study Area and impact to it will not result in any significant loss to the species, it therefore has low(a)
conservation significance.
Gastrolobium rotundifolium has been recorded in the Geraldton Sandplains and Avon Wheatbelt
bioregions and is known from 387 individuals at 30 locations. In the Study Area, 11 individuals were
recorded at five locations (3% of the total known individuals). This species is not very common in the
Study Area and impact to it will not result in any significant loss to the species, it therefore has low(a)
conservation significance.
Oakajee Port and Rail
OPR Rail Proposal – Vegetation and Flora Assessment
May 2010
183
Geleznowia verrucosa subsp. Kalbarri (L.M. Broadhurst 123) has been recorded in the Geraldton
Sandplains bioregion and is known from 459 individuals at 37 locations. In the Study Area, 78
individuals were recorded at seven locations (17% of the total known individuals). Geleznowia
verrucosa subsp. Kalbarri is not a widely known species and any impact could have a significant result
to the species and therefore has moderate conservation significance. As this is not a fully described
species, it is possible that it is not a rare in the local area, but poorly collected, however as this is not
known the former should be assumed.
Gnephosis cassiniana has been recorded in the Yalgoo, Geraldton Sandplains and Avon Wheatbelt
bioregions and is known from 12,040 individuals at 13 locations. In the Study Area, three
individuals were recorded at two locations (<1% of the total known individuals). This species is not
very common in the Study Area and impact to it will not result in any significant loss to the species, it
therefore has low(a) conservation significance.
Grevillea candicans has been recorded in the Geraldton Sandplains and Avon Wheatbelt bioregions
and is known from 75 individuals at 28 locations. In the Study Area, 10 individuals were recorded at
three locations (13% of the total known individuals). Grevillea candicans is not a widely known
species and a moderate amount of the known population is recorded in the Study Area. Any impact
could have a significant result to the species and therefore has moderate conservation significance
Grevillea stenostachya has been recorded in the Murchison, Yalgoo, Geraldton Sandplains and
Carnarvon bioregions and is known from 657 individuals at 224 locations. In the Study Area, 388
individuals were recorded at 158 locations (59% of the total known individuals). This species was
relatively common in the Study Area, but as the numbers recorded outside the Study Area are rather
well known and widespread, and the percentage of total numbers is low, this species has low(b)
conservation significance in the Study Area.
Grevillea triloba has been recorded in the Geraldton Sandplains bioregion and is known from 15,734
individuals at 493 locations. In the Study Area, 5,924 individuals were recorded at 345 locations
(38% of the total known individuals). This species was relatively common in the Study Area, but as
the numbers recorded outside the Study Area are rather well known and widespread, and the
percentage of total numbers is low, this species has low(b) conservation significance in the Study
Area.
Hemigenia tysonii has been recorded in the Murchison, Geraldton Sandplains, Gascoyne and
Carnarvon bioregions and is known from 8,239 individuals at 280 locations. In the Study Area,
5,904 individuals were recorded at 197 locations (72% of the total known individuals). This species
was widely recorded across the Study Area and because of this, despite the large percentage of the
total species population in the Study Area; it is likely to be poorly collected, rather than locally
endemic and therefore has low(b) conservation significance.
Hemigenia virescens has been recorded in the Murchison and Gascoyne bioregions and is known
from 5,439 individuals at 120 locations. In the Study Area, 5,115 individuals were recorded at 112
locations (94% of the total known individuals). This species was widely recorded across the Study
Area and because of this, despite the large percentage of the total species population in the Study
Area; it is likely to be poorly collected, rather than locally endemic and therefore has low(b)
conservation significance.
Homalocalyx echinulatus has been recorded in the Murchison and Gascoyne bioregions and is known
from 862 individuals at 51 locations. In the Study Area, 218 individuals were recorded at 11
locations (25% of the total known individuals). This species was widely recorded across the Study
Area and because of this, despite the large percentage of the total species population in the Study
Area; it is likely to be poorly collected, rather than locally endemic and therefore has moderate
conservation significance.
Oakajee Port and Rail
OPR Rail Proposal – Vegetation and Flora Assessment
May 2010
184
Indigofera gilesii subsp. gilesii has been recorded in the Pilbara bioregion and is known from 123
individuals at 16 locations. In the Study Area, one individual was recorded at one location (1% of
the total known individuals). This species is not very common in the Study Area and impact to it will
not result in any significant loss to the species, it therefore has low(a) conservation significance.
Lasiopetalum oppositifolium has been recorded in the Geraldton Sandplains bioregion and is known
from 351 individuals at 49 locations. In the Study Area, 79 individuals were recorded at two
locations (22% of the total known individuals). This species is not very common in the Study Area
and impact to it will not result in any significant loss to the species, it therefore has low(a)
conservation significance.
Lepidium scandens has been recorded in the Murchison and Carnarvon bioregions and is known from
54 individuals at five locations. In the Study Area, one individual was recorded at one location (2%
of the total known individuals). This species is not very common in the Study Area and impact to it
will not result in any significant loss to the species, it therefore has low(a) conservation significance.
Microcorys tenuifolia has been recorded in the Geraldton Sandplains and Avon Wheatbelt bioregions
and is known from 200 individuals at 17 locations. In the Study Area, seven individuals were
recorded at six locations (4% of the total known individuals). This species is not very common in the
Study Area and impact to it will not result in any significant loss to the species, it therefore has low(a)
conservation significance.
Micromyrtus placoides has been recorded in the Murchison and Yalgoo bioregions and is known from
3,955 individuals at 80 locations. In the Study Area, 11 individuals were recorded at four locations
(<1% of the total known individuals). This species is not very common in the Study Area and impact
to it will not result in any significant loss to the species, it therefore has low(a) conservation
significance.
Petrophile pauciflora has been recorded in the Murchison and Yalgoo bioregions and is known from
429 individuals at 29 locations. In the Study Area, 64 individuals were recorded at eight locations
(15% of the total known individuals). This species is not very common in the Study Area and impact
to it will not result in any significant loss to the species, it therefore has low conservation
significance.
Prostanthera petrophila has been recorded in the Murchison and Yalgoo bioregions and is known
from 1,607 individuals at 105 locations. In the Study Area, 218 individuals were recorded at 26
locations (14% of the total known individuals). This species is not very common in the Study Area
and impact to it will not result in any significant loss to the species, it therefore has low(a)
conservation significance.
Ptilotus beardii has been recorded in the Murchison and Yalgoo bioregions and is known from 4,104
individuals at 83 locations. In the Study Area, 2,565 individuals were recorded at 45 locations (63%
of the total known individuals). This species was widely recorded across the Study Area and because
of this, despite the large percentage of the total species population in the Study Area; it is likely to be
poorly collected, rather than locally endemic (the total known distribution spans 230 km) and
therefore has low(b) conservation significance.
Ptilotus luteolus has been recorded in the Murchison and Gascoyne bioregions and is known from
894 individuals at 31 locations. In the Study Area, 315 individuals were recorded at 10 locations
(35% of the total known individuals). This species is not very common in the Study Area and impact
to it will not result in any significant loss to the species, it therefore has low(a) conservation
significance.
Scaevola oldfieldii has been recorded in the Geraldton Sandplains bioregion and is known from 162
individuals at 12 locations. In the Study Area, six individuals were recorded at one location (4% of
Oakajee Port and Rail
OPR Rail Proposal – Vegetation and Flora Assessment
May 2010
185
the total known individuals). This species is not very common in the Study Area and impact to it will
not result in any significant loss to the species, it therefore has low(a) conservation significance.
Serichonus gracilipes has been recorded in the Geraldton Sandplains bioregion and is known from 76
individuals at 21 locations. In the Study Area, 36 individuals were recorded at 13 locations (47% of
the total known individuals). This species appears to be restricted in the local area, and the large
percentage of total population within the Study Area in this case likely indicates a high local
endemism in this area (the total known distribution spans 50 km). Any Impact to this species is likely
to significantly affect species numbers and therefore has high(c) conservation significance.
Stenanthemum divaricatum has been recorded in the Geraldton Sandplains and Carnarvon
bioregions and is known from 17 individuals at 12 locations. In the Study Area, one individual was
recorded at one location (6% of the total known individuals). This species is not very common in the
Study Area and impact to it will not result in any significant loss to the species, it therefore has low(a)
conservation significance.
Tecticornia cymbiformis has been recorded in the Murchison and Yalgoo bioregions and is known
from 66 individuals at eight locations. In the Study Area, 11 individuals were recorded at two
locations (17% of the total known individuals). This species is not very common in the Study Area
and impact to it will result in a moderate loss to the species, it therefore has moderate conservation
significance.
Thryptomene sp. Moresby Range (A.S. George 14873) has been recorded in the Geraldton Sandplains
bioregion and is known from 1,834 individuals at 61 locations. In the Study Area, 1,459 individuals
were recorded at 38 locations (80% of the total known individuals). This species appears to be
restricted in the local area, and the large percentage of total population within the Study Area in this
case likely indicates a high local endemism in this area (the total known distribution spans 30 km).
Any Impact to this species is likely to significantly affect species numbers and therefore has high(c)
conservation significance.
Thryptomene sp. Wandana (M.E. Trudgen MET 22016) has been recorded in the Geraldton
Sandplains bioregion and is known from 747 individuals at 22 locations. In the Study Area, 684
individuals were recorded at 8 locations (92% of the total known individuals). Thryptomene sp.
Wandana is not a widely known species (the total known distribution spans 150 km) and almost all of
the known populations are recorded in the Study Area. Any impact could have a significant result to
the species and therefore has moderate conservation significance. As this is not a fully described
species, it is possible that it is not a rare in the local area, but poorly collected, however as this is not
known, the former should be assumed.
Verticordia chrysostachys var. pallida has been recorded in the Geraldton Sandplains and Avon
Wheatbelt bioregions and is known from 262 individuals at 35 locations. In the Study Area, 86
individuals were recorded at eight locations (33% of the total known individuals). This species is not
very common in the Study Area and impact to it will result in a moderate loss to the species, but as
its known distribution spans 180 km it therefore has moderate conservation significance.
Verticordia densiflora var. roseostella has been recorded in the Geraldton Sandplains and Avon
Wheatbelt bioregions and is known from 439 individuals at 49 locations. In the Study Area, 83
individuals were recorded at four locations (19% of the total known individuals). This species is not
very common in the Study Area and impact to it will result in a moderate loss to the species, but as
its known distribution spans 250 km it therefore has moderate conservation significance.
Verticordia jamiesonii has been recorded in the Murchison, Yalgoo and Gibson Desert bioregions and
is known from 590 individuals at 37 locations. In the Study Area, 31 individuals were recorded at six
locations (5% of the total known individuals). This species is not very common in the Study Area and
|