5.7.3.2. Introduced Flora Species
Introduced flora species were generally restricted to the eastern half of the project area, with the most
abundant weed populations noted adjacent to and within the unnamed mine spoil dump adjacent to the
Open Cut Pit. Eight of the introduced flora species observed within the project area are considered
restricted matter flora species under the Biosecurity Act. These species included: Lantana camara
(creeping Lantana), Cenchrus setaceus (fountain grass), Harrisia martinii (Martin apple cactus),
Tecoma stans (yellow bells), Sporobolus natalensis (giant rats tail grass), Opuntia tomentosa (velvety
tree pear), Cryptostegia grandiflora (rubber vine) and Lantana camara (Lantana). The latter three
species are also considered Weeds of National Significance (WoNS). Each species is further discussed
in Table 40.
Table 40. Restricted matters and WoNs occurring in the project area
Name
Biosecurity
WoNS
Field Observation
Act
Cenchrus
Category 3
No
This species was the most abundant restricted matter in the
setaceus
project area. Where present, the species was generally observed
(fountain
as the dominant ground cover, occasionally creating dense
grass)
homogenous swards. The species was most abundant in the
south – south eastern extents of the project area, but was noted
else where on site as isolated tussocks along road verges. The
species generally presented as mature, healthy individuals with
evidence of active or recent reproduction (seed heads).
Cryptostegia
Category 3
Yes
This species was noted at three locations within the project area.
grandiflora
The species was only noted as isolated, young recruiting
(rubber vine)
individuals
Harrisia
Category 3
No
This species was noted at four locations across the eastern extent
martini
of the project area. At all locations the species was observed as
(Martin apple
solitary individuals. All individuals presented as healthy, with two
cactus)
currently in fruit.
Lantana
Category 3
Yes
This species was noted across the eastern half of the project area
camara
and was the second most abundant restricted matter observed
(Lantana)
during field surveys. The species varied in density from isolated
shrubs to dense thickets, with the latter frequently noted to have
grown over and smothered local vegetation. Most larger
individuals were considered healthy, with extensive with flower
and seed.
Lantana
Category 3
No
This species was generally observed from disjunct locations along
montevidensis
and adjacent to the artificial flat in the eastern extent of the project
(creeping
area. Where noted the species presented as frequent clusters to
Lantana)
dense lying mats, often growing over local vegetation. In all
135
Wulguru Technical Services Pty Ltd – Supporting Information to Amend an Environmental Authority
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