Assemblage
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Number Species confined to wetland habitats
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Number of species recorded on gypsum
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Soils and Topography
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Comments
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Characteristic species
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Location
Bioregions
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1.2
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14 out of 43
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26 out of 35
74%
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Inland primary salt lake systems and associated valley floors. Richest on fine textured calcareous and gypseous soils.
Moderate to high ELCODE not subject to inundation
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Several taxa are associated with gypsum substrates Goodenia sp. Lake King (Goodenia salina) and Kippistia suaedifolia
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Goodenia salina
Kippistia suaedifolia
Asteridea athrixioides Hemichroa diandra
Sondottia connata
Eucalyptus flocktoniae Maireana appressa
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Avon Wheatbelt Mallee
Yalgoo Coolgardie
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2.6
|
8 out of 10
|
5 out of 9
55%
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Gypsum and saline clay substrates on margins, or on centrally raised beds, of inland saline playas and pans.
% gypsum was a significant term in the GLM model
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Small group taxa
Species poor stands
Several undescribed species known from few localities.
|
Frankenia sp. southern gypsum Halosarcia sp. lake Moore (Tecticornia loriae)
Triglochin lyonsii ms
Hydrocotyle hexaptera ms
Chondropyxis halophila
Trichanthodium exile
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Avon Wheatbelt Mallee
Yalgoo
Coolgardie
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3.2
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16 out of 21
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18 out of 21
86%
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Coastal and near coastal salt lakes and southern inland saline playas. Within wetlands taxa occupy berms and elevated flats, often of evaporate derived substrates. Moderate to high EC
ELCODE (intermediate wetland elevations)
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Austrostipa pycnostachya also non-wetland.
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Austrostipa pycnostachya Wilsonia humilis
Hagiela tatei
Frankenia tetrapetala
Lawrencia glomerata
Tegicornia uniflora
Austrostipa juncifolia
Isotoma scapigera
|
Coastal and southern near coastal wetlands.
Esperance sandplains
Southern Avon Wheatbelt
Mallee
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3.3
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2/3 restricted to wetlands
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23 out of 24
96%
10 weeds
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Primary and secondary saline/brackish and disturbed freshwater wetland edges.
Wetland margins
ELCODE 2 and 3 max richness % gypsum was a significant term in the GLM model
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Widespread taxa included
Taxa not restricted to wetlands
*Hordeum glaucum
* Hordeum leporinum
*Lolium sp
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Apium annum
*Cotula bipinnata
Melaleuca halmaturorum
*Parapholis incurva *Spergularia rubra
Tecticornia doleiformis
Tecticornia indica Tecticornia quinqueflora
Triglochin mucronata
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Coastal and Wheatbelt
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4.1
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22 out of 23
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21 out of 23
91%
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Sandy berms, strand lines and low sandy flats of inland primarily saline playas and braided saline drainage lines
ELCODE 2 and 3 max richness
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Some northern taxa associated with Gypsum - Frankenia conferta
Neosciadium glochidiatum
7 species Tecticornias
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Tecticornia undulata
Tecticornia halocnemoides
Tecticornia peltata
Tecticornia pruinosa
Gunniopsis septifraga
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Wheatbelt into the adjacent arid zone. Subset N Avon wheatbelt
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4.2
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All
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4 out of 9
44%
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Edges of channels in braided primary saline drainage lines, slightly elevated sandy rises and margins of primary saline playas and small pans. Seasonally leached sands rather than evaporate derived substrates (3.3)
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Uncommon taxa
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Roycea pycnophylloides
Sarcocornia globosa
Tecticornia sp. central wheatbelt
Frankenia bracteata
Drosera zigzagia
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Avon Wheatbelt
Mallee
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12
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All
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1 out of 6
17%
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Sandy margins of saline playas and braided drainage lines Similar habitat to 4.2 poorly known
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Millotia steetziana recorded on gypsum
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Undescribed taxa
Tribonanthes minuta
Hypoxis salina
Calandrinia sp. Hyden
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Mallee
Esperance
Avon Wheatbelt
Jarrah forest
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16
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None restricted to wetlands
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11 out of 24
46%
3 weeds
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Widespread on more fertile granitic soils, orange sandy loams and finer textured valley floor soils that are non saline. Around wetlands max richness occurred on dunes and flats. Dominated by terrestrial taxa
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Dominated by widespread herbs
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Acacia acuminata
Eucalyptus loxophleba subsp. loxophleba
Gonocarpus nodulosus
Quinetia urvillei
Drosera glanuligera
Millotia tenuifolia
Dianella revoluta
Podolepis lessonii
Daucus glochidiatus
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Avon Wheat belt centre of taxa distribution
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17
|
5 out of 50
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25 out of 50
50%
3 weeds
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Preference for more fertile granite derived soils. Low EC. Moderate to high elevations
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Typical of semi-arid Acacia, Eremophila and Melaleuca dominated shrublands and eucalypt woodlands. Wide spread lower rainfall non-wetland annuals and taxa specific to shrublands on lunettes and flats within salt lake systems
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Lawrencella rosea
Actinobole uliginosum
Sarcozona praecox
Podotheca pritzelii
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Avon Wheatbelt
Max richness in NE study area
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18
|
22% restricted to wetlands
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56 out of 68
82%
13 weeds
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Most associated with saline and semi-saline habitats. Margins of naturally saline playas and braided drainage systems
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Broad array of habitats
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Saline habitat- Atriplex hymenotheca
Didymanthus roei
Gnephosis angianthoides
Stenopetalum salicola
Centrolepis humillima
Saline influence Lycium australe
Threlkeldia diffusa
Pogonolepis stricta
Rhagodia drummondii
Mesembryanthemum nodiflorum
Atriplex paludosa
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Dominated by annual herbs that have distributions centred within the Avon Wheatbelt and Mallee
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19
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31% restricted to wetlands
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18 out of 63 species
28%
8 weeds
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More restricted to primary salt lake habitats
Non wetland habitats of valley floors
Moderate to high ELCODE
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Shrublands on elevated rises as well as mid slope chenopod dominated low shrublands on margins of salt lakes
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Gunniopsis quadrifida
Eremophila miniata
Maireana amoena
Maireana atkinsoniana
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Distribution of taxa northern Avon Wheatbelt
Geraldton sandplains
Yalgoo
|
20
|
9% restricted to wetlands
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33 out of 76
43%
4 weeds
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Within wetlands on elevated flats and dunes in primary salt lake systems
17 and 19 northern
Sandy lunettes and flats
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Widespread annual herbs
Dunes Darwinia sp. Karonie
Leucopogon sp. Kau Rock
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Carpobrotus modestus
Melaleuca brophyi
Restricted to wetlands-
Eucalyptus sargentii
Eualyptus salicola
Bossiaea halophila
Lomandra micrantha subsp. teretifolia
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Central and southern wheatbelt
Avon wheatbelt
Mallee
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21
|
None restricted to wetlands
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24 out of 34
70 %
7 weeds
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Finer textured soils of valley floors and broad Aeolian plains associated with primary salt lake systems
|
|
Strongly associated with primarily saline wetlands –
Acacia inceana
Millotia major
Eucalyptus kondininensis
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Southern Avon Wheatbelt
Mallee Coolgardie and northern Avon Wheatbelt
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