Summary - City of Gosnells

Vegetation 62Vegetation Unit ST5: Hakea trifurcata – Xanthorrhoea preissii open scrub over patchy Hypocalymmaangustifolium - Xanthorrhoea preissii closed heath over mid-dense Mesomelaena tetragona - Cyathochaetaavenacea sedges.This vegetation was species- rich and it inhabited a palusplain of deep muddy sand in Precinct 2. It wasgenerally in good condition except for some small localized areas of rubbish dumping and excavations thathad been made many years ago and had now grown over with thick heath and scrub. There was a dense weedinfestation on the periphery and part of the central area of this block (mainly *Eragrostis curvula,*Hyparrhenia hirta and *Watsonia meriana var. bulbillifera).Associates of this vegetation included: Acacia stenoptera, Anarthria laevis, Aphelia cyperoides, *Asparagusasparagoides, Actinostrobus pyramidalis, Baeckea camphorosmae, Baeckea sp. Perth Region (R.J. Cranfield444), Banksia dallanneyi var. dallanneyi, Baumea juncea,*UBriza minorU, Calytrix aurea, Cheilanthesaustrotenuifolia, Chordifex sinuosus, Conostylis aculeata subsp. preissii, Centrolepis aristataU, Dampieralinearis, Desmocladus fasciculatus, Drosera glanduligera, Drosera heterophylla, Drosera neesii subsp.neesii, Drosera rosulata, *Ehrharta calycina, *Ehrharta longiflora, Gastrolobium capitatum, Haemodorumlaxum, Hypolaena exsulca, Jacksonia floribunda, Kingia australis, Lepidosperma longitudinale,Lepidosperma pubisquameum sens. lat.., Lomandra caespitosa, Lomandra micrantha subsp. micrantha,*Lotus subbiflorus, UNeurachne alopecuroideaU, Patersonia occidentalis var. angustifolia, Pericalymmaellipticum var. floridum, Philotheca spicata, Pimelea imbricata var. major, Scaevola lanceolata, Schoenussubflavus subsp. subflavus, Schoenolaena juncea, Stylidium dichotomum, Stylidium repens, Thelymitramucida, Tribolium uniolae, Tribonanthes australis, Tricoryne elatior, Tripterococcus brunonis,*Ursiniaanthemoides, Verticordia densiflora subsp. densiflora and *Wahlenbergia capensis.Vegetation Unit ST6: Acacia saligna - Actinostrobus pyramidalis - Melaleuca viminea closed scrub oversparse rushes and sedges.This vegetation was in good to very good condition and inhabited a muddy floodplain-palusplain adjacent toYule Brook in Precinct 3B. It had a dense canopy as it was recovering from a fire that had occurred in thevegetation less than five years before the current survey. The dense scrub and moderate woody litter on thesite was observed to be very good fauna habitat for native birds and Isoodon obesulus (Quenda). This areawas similar floristically to the species-rich vegetation on an adjacent block, but it had a closed, tallervegetation structureand was less species-rich in some places. The ecological attributes of these two blocksare complementary and they should be managed as one unit by replanting the small cleared area betweenthem.Associates of this vegetation included: Acacia lasiocarpa var. lasiocarpa sens. strict. Acanthocarpuscanaliculatus, Banksia telmatiaea, Baumea juncea, Cassytha racemosaU, Chaetanthus aristatus,Cyathochaeta avenacea, Dichopogon capillipes, *Ehrharta calycina, Gahnia trifida, Grevilleathelemanniana, Hypocalymma angustifolium Mud Habitat Variant (C.Tauss 1850), Lepidospermalongitudinale, Lepyrodia glauca, Lomandra micrantha subsp. micrantha, *ULolium multiflorumU, Meeboldinaroycei, Melaleuca brevifolia, Melaleuca lateriflora subsp. acutifolia, Melaleuca osullivanii, Samolusjunceus, Schoenus asperocarpus, Thysanotus dichotomus, Tricoryne elatior, Triglochin linearis, Viminariajuncea, *Watsonia meriana var. bulbillifera and *Watsonia marginata.Vegetation Unit SL1: Hypocalymma angustifolium – Banksia telmatiaea mid-dense heath overCyathochaeta avenacea- Mesomelaena tetragona open sedges.This vegetation inhabited a palusplain of muddy sand over sand over sandy mud and calcareous mud(Muchea Limestone) in Precinct 2. It was an unusual, species-rich heath in very good condition that includedsome floristic elements characteristic of the muddy soil of the understorey of Vegetation Unit T1 (such asHakea ceratophylla), but also Conospermum undulatum (which is usually characteristic of deep sandhabitats). The weed cover in this vegetation was very low but there were invasive weeds nearby including*Hyparrhenia hirta. There are no other known occurrences of this type of vegetation in the MKSEA or BFS387 nor were any found in the literature for elsewhere on the Swan Coastal Plain.Associates of this vegetation included: UAcacia stenoptera, Acanthocarpus canaliculatus, Amphipogonturbinatus, Andersonia lehmanniana subsp. lehmanniana, Banksia dallanneyi var. dallanneyi, Boroniacrenulata subsp. viminea, *Briza maxima, Calectasia grandiflora subsp. grandiflora R.L. Barrett ms,Calytrix aurea, Centrolepis aristata, Chaetanthus aristatus, Comesperma aff. polygaloides, ConospermumTauss, 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