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HClNC Vegetation Classification & mapping Project: Volume 1: Vegetation Classification Technical Report Microlaena stipoides, Austrostipa verticillata, Sporobolus creber, Eragrostis leptostachya and Bothriochloa decipiens. Various forbs are also commonly present, including Desmodium varians, Glycine tabacina, Dichondra repens, Calotis lappulacea, Brunoniella australis and Einadia nutans, as well as the ground ferns Cheilanthes sieberi and C. distans. Numerous naturalised species were recorded in more than 25% of sites in this community including Cirsium vulgare (Spear Thistle, 36%), Anagallis arvensis (Scarlet/Blue Pimpernel, 43%), Sida rhombifolia (Paddy’s Lucerne, 30%), Plantago lanceolata (Lamb’s Tongues, 36%), Senecio madagascariensis (Fireweed, 74%), Sonchus oleraceus (Common Sowthistle, 30%), Opuntia stricta var. stricta (Common Prickly Pear, 74%), Paronychia brasiliana (Chilean Whitlow Wort, 30%) and Hypochaeris radicata (Catsear, 36%). Within the study area, this community occurs in the Upper and Central Hunter Valley on a range of substrates. MU 157 — Bull Oak grassy woodland in the Hunter Valley Woodlands characterised by an overstorey almost exclusively dominated by Allocasuarina leuhmannii, although Eucalyptus crebra and occasionally E. moluccana may be present in the overstorey. Few smaller shrubs are present and the understorey is predominately grassy with a diverse range of grasses commonly occurring, including Cymbopogon refractus, Eragrostis brownii, Bothriochloa decipiens, Panicum effusum, Aristida ramosa, A. vagans and Eragrostis leptostachya. The ground layer may also commonly include graminoids, particularly Fimbristylis dichotoma, and a range of forbs, including Chrysocephalum apiculatum, and the ground fern Cheilanthes sieberi. Naturalised species recorded at more than 25% of sites in this community were Opuntia aurantiaca (Tiger Pear, 44%), Sida rhombifolia (Paddy’s Lucerne, 33%) and Senecio madagascariensis (Fireweed, 78%). This community is distributed within the study area in the Central Hunter Valley at lower elevations on a range of substrates. MU 158 — Yellow Box / Rough-barked Apple grassy woodland Open forests to woodlands characterised by a canopy dominated by Eucalyptus melliodora and Angophora floribunda, and often including E. blakelyi. Shrubs are only sparsely present and the understorey is characteristically grassy and often dominated by Aristida ramosa, with a number of other grasses less commonly present, including Chloris truncata, Austrostipa verticillata and A. scabra. A range of forbs are also common in the ground layer, including Dichondra repens (which may be very abundant at some sites), Calotis lappulacea, Ajuga australis, Urtica incisa and Einadia nutans. Naturalised species commonly recorded at sites in this community include Medicago minima (Woolly Burr Medic, 60%), Silybum marianum (Variegated Thistle, 40%), Cirsium vulgare (Spear Thistle, 40%), Marrubium vulgare (Horehound, 60%) and Hypochaeris radicata (Catsear, 60%). Within the study area, this community occurs on the lower slopes of the Liverpool Range and in the Upper Hunter Valley and Merriwa plateau, mainly on riparian sites on basalts and clays. MU 158 is of particular regional conservation significance as it relates to the Endangered Ecological Community ‘White Box Yellow Box Blakely’s Red Gum Woodland’ (DECC 2009). 118
MU 159 — White Box grassy woodland 119 CHaPTeR 4 Results Open woodlands to woodlands characterised by an open canopy dominated by Eucalyptus albens, with E. moluccana occurring occasionally. A shrub layer is rarely present although a number of low shrubs are commonly present, including Sclerolaena muricata and Sida trichopoda. The ground layer is characteristically grassy and dominated by species including Cynodon dactylon, Bothriochloa macra, Elymus scaber and Austrostipa bigeniculata. Scattered or localised forbs are also commonly present in the ground layer, including Oxalis perennans, Boerhavia dominii, Chamaesyce drummondii, Hibiscus trionum and Einadia nutans. A number of naturalised species were recorded in more than 25% of sites in this community, including Medicago minima (Woolly Burr Medic, 50%), Polygonum aviculare (Wireweed, 33%), Salvia verbenaca (Wild Sage, 42%), Silybum marianum (Variegated Thistle, 67%), Medicago laciniata (Cut-leaved Medic, 42%), Sonchus oleraceus (Common Sowthistle, 33%), Tribulus terrestris (Catshead, 33%), Medicago orbicularis (Button Medic, 58%) and Medicago polymorpha (Burr Medic, 33%). Within the study area, this community occurs on basalt on the Merriwa plateau and lower slopes of the Liverpool Range. MU 159 is of particular regional conservation significance as it relates to the Endangered Ecological Community ‘White Box Yellow Box Blakely’s Red Gum Woodland’ (DECC 2009). MU 160 — Yellow Box grassy woodland Woodlands with a canopy dominated by Eucalyptus melliodora, often in association with Angophora floribunda. A sparse mid storey of Brachychiton populneus is often also present. A sparse shrub layer may also be present, often only as scattered shrubs, and commonly includes Solanum cinereum, Pimelea curviflora, S. nigrum, Atriplex semibaccata, Acacia decora and Eremophila debilis. The ground layer is typically dominated by grasses, with common species including Austrostipa scabra, Bothriochloa decipiens, A. verticillata, A. aristiglumis, Chloris ventricosa, Austrodanthonia racemosa and Panicum effusum. A diverse range of forbs is typically also present in the ground layer, including Einadia trigonos, Sida corrugata, Calotis lappulacea, Boerhavia dominii, Oxalis perennans, Vittadinia cervicularis and Brunoniella australis. The ground ferns Cheilanthes sieberi and C. distans, and graminoids such as Carex inversa may also be included in the ground layer. Numerous naturalised species, mostly herbaceous, were recorded in more than 25% of sites in this community, including Medicago minima (Woolly Burr Medic, 100%), Lolium rigidum (Wimmera Ryegrass, 70%), Salvia verbenaca (Wild Sage, 90%), Avena fatua (Wild Oats, 60%), Trifolium repens (White Clover, 40%), Silybum marianum (Variegated Thistle, 40%), Rapistrum rugosum (Turnip Weed, 70%), Cirsium vulgare (Spear Thistle, 60%), Malva parviflora (Small-flowered Mallow, 30%), Chondrilla juncea (Skeleton Weed, 60%), Carthamus lanatus (Saffron Thistle, 90%), Amaranthus retroflexus (Redroot Amaranth, 50%), Bromus catharticus (Praire Grass, 50%), Echium plantagineum (Patterson’s Curse, 30%), Centaurea melitensis (Maltese Cockspur, 70%), Sisymbrium irio (London Rocket, 80%), Arenaria leptoclados (Lesser Thyme-leaved Sandwort, 50%), Sisymbrium orientale (Indian Hedge Mustard, 30%), Marrubium vulgare (Horehound, 60%), Trifolium campestre (Hop Clover, 50%), Trifolium arvense (Haresfoot Clover, 40%), Conyza bonariensis (Flaxleaf Fleabane, 70%), Taraxacum officinale (Dandelion, 50%), Opuntia stricta var. stricta (Common Prickly Pear, 70%), Erodium cicutarium (Common Crowfoot, 30%), Trifolium glomeratum (Clustered Clover, 60%), Tribulus terrestris (Catshead, 70%), Hypochaeris radicata (Catsear, 40%), Medicago orbicularis (Button Medic, 70%), Hirschfeldia
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Hunter, Central & Lower North Coast
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Classification Expert Review Panel
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3.4 Vegetation community analysis .
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List of abbreviations API aerial ph
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HClNC Vegetation Classification & m
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CHaPter 2 Vegetation of the study a
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