Summary - City of Gosnells

Vegetation 59The canopy of this wetland was more or less intact but the understorey was somewhat depauperate anddominated by naturalised alien taxa. The rest of the block was completely degraded with a dense cover of*Watsonia meriana var. bulbillifera and *Watsonia marginata. The block was grazed by several horses butthe thick vegetation in the sumpland tended to exclude the horses.Vegetation Unit T10: Allocasuarina fraseriana- Eucalyptus todtiana- Banksia menziesii low woodland overspecies-rich low shrubs.This vegetation was one of the most species-rich vegetation types recorded in the MKSEA; it included morethan 62 taxa per 100 m 2 . Unlike the other species-rich vegetation in the MKSEA, that inhabited muddypalusplains and sumplands, Vegetation Unit T10 inhabited upland areas of sand dunes in the south east of theMKSEA where deep Bassendean Sands overlie the Guildford Formation. This unit occurred in three blocksin Precinct 1. The occurrences of this vegetation unit two of these blocks were in very good to goodcondition whilst the occurrence the third block was degraded and dominated by invasive woody and grassyweeds. One of the blocks that was in very good condition had the EPBC Listed Threatened SpeciesConospermum undulatum; it had been burnt about a year before the current survey but was regeneratingwell. The understorey of this bushland was dominated by Austrostipa compressa, an annual, native grass.The recruitment of abundant Austrostipa compressa after fire is a characteristic of bushland that includes anabundant soil seed bank of native annual species.Common associates of this unit included: Acacia willdenowiana, Adenanthos cygnorum, Alexgeorgea nitens,Allocasuarina humilis, Amphipogon turbinatus, Austrostipa compressa, Austrostipa elegantissima,Austrostipa pycnostachya, Baeckea camphorosmae, Banksia attenuata, Bossiaea eriocarpa, Briza maxima,*Briza minor, Burchardia umbellata, Comesperma calymega, Conospermum undulatum, Conostylis aurea,Conostylis juncea, Corymbia calophylla, Crassula exserta, Cyathochaeta equitans, Dampiera linearis,Dasypogon bromeliifolius, Dasypogon obliquifolius, Desmocladus fasciculatus, *Dischisma arenarium,Drosera macrantha subsp. macrantha, Drosera stolonifera, *Ehrharta calycina, *Ehrharta longiflora,*Eragrostis curvula, Eremaea pauciflora var. calyptra, Gastrolobium linearifolium, *Gladioluscaryophyllaceus, Gompholobium confertum, Gompholobium tomentosum, Haemodorum paniculatum,Haemodorum spicatum, Hakea ruscifolia, Hemiandra pungens, Hibbertia hypericoides, Hybanthuscalycinus, *Hypochaeris glabra, Hypolaena exsulca, Jacksonia angulata, Jacksonia floribunda, Johnsoniapubescens, Kunzea glabrescens, Lechenaultia expansa, Lepidosperma scabrum Eastern Terete Form (B.J.Keighery & N. Gibson 232), Lepidosperma squamatum sens. lat., *Leptospermum laevigatum, Levenhookiapusilla, Levenhookia stipitata, Lomandra caespitosa, Lomandra hermaphrodita, Lomandra sericea, Lyginiabarbata, Lyginia imberbis, Mesomelaena pseudostygia, Mesomelaena tetragona, Microtis media, Monotaxisgrandiflora var. grandiflora, Nuytsia floribunda, Patersonia occidentalis var. occidentalis,*Pentaschistisaeroides, Phlebocarya ciliata, Phlebocarya filifolia, Philotheca spicata, Pimelea sulphurea, Rhodanthecitrina, Scaevola repens var. repens, Schoenus caespititius, Schoenus curvifolius, Senecio pinnatifolius var.latilobus, Siloxerus filifolius, *Sonchus oleraceus, Stirlingia latifolia, Stylidium calcaratum, Stylidiumdiuroides subsp. diuroides, Stylidium piliferum, Stylidium repens, Stylidium schoenoides, Synapheaspinulosa, Thysanotus manglesianus, Thysanotus sparteus, Thysanotus thrysoideus, Trachymene pilosa,Tricoryne elatior, Tricoryne tenella, *Trifolium arvense var. arvense, *Ursinia anthemoides, Verticordiadensiflora var. densiflora,*Vulpia fasciculata, *Wahlenbergia capensis, Wahlenbergia gracillenta andXanthorrhoea preissii.Vegetation Unit T11: Allocasuarina fraseriana-Banksia menziesii low open woodland over a degradedunderstorey.This unit occurred in Precinct 1 and, less commonly, in Precinct 2. All of the occurrences of this unit in theMKSEA were in a degraded condition probably due frequent fire with a patchy sparse tree canopy andunderstorey dominated by a mid-dense to dense cover of invasive weeds such as *Ehrharta calycina,*Eragrostis curvula and *Leptospermum laevigatum.Common associates of this unit included: Acacia huegelii, Acacia pulchella var. glaberrima, Acacia salignavar. saligna, Adenanthos cygnorum, Alexgeorgea nitens, Allocasuarina humilis, Arnocrinum preissii,Banksia ilicifolia, Bossiaea eriocarpa, *Briza maxima, Burchardia umbellata, Conostylis juncea, Dampieralinearis, Dasypogon bromeliifolius, Desmocladus fasciculatus, *Dischisma arenarium, *Ehrharta calycina,*Eragrostis curvula,, Eremaea pauciflora var. pauciflora, Eucalyptus todtiana, *Gladiolus caryophyllaceus,Gompholobium tomentosum, Hakea ruscifolia, Hemiandra pungens, Hibbertia hypericoides, HibbertiaTauss, C. and Weston, A.S. (2010). The flora, vegetation and wetlands of the Maddington-Kenwick Strategic Employment Area.A survey of the rural lands in the vicinity of the Greater Brixton Street Wetlands. Report to the City of Gosnells, W.A. Version 18.04.10