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HClNC Vegetation Classification & mapping Project: Volume 1: Vegetation Classification Technical Report MU 123 — Bulga Wattle low closed forest Low closed forests with a canopy strongly dominated by Acacia bulgaensis, often in association with Callitris endlicheri. Eucalyptus moluccana and E. punctata are typically present as emergent tree but are not abundant, and Angophora costata may also be present. An open layer of smaller shrubs is usually present and commonly includes Bertya oleifolia, Solanum stelligerum, Cassinia leptocephala, Spartothamnella juncea and Melichrus urceolatus. The ground layer consists of a mix of grasses, predominately including Paspalidium distans and Entolasia stricta; ground ferns, mainly Cheilanthes distans and C. sieberi; and various graminoids, including Lomandra confertifolia and Lepidosperma laterale. Various forbs may also be present, including Dichondra repens, Pratia purpurascens and Plectranthus parviflorus. The only naturalised species recorded in this community at more than 25% of sites was Bidens subalternans (Greater Beggar’s Ticks, 67%). This community occurs within the study area on sandstone ranges of the Lower and Central Hunter Valley at mid to lower elevations. MU 123 may have particular regional conservation significance due to the dominance of the rare shrub Acacia bulgaensis which is rarely recorded in this study in sites outside this community. In relating MU 123 to Keith vegetation classes, a new class called ‘Northern Wattle Dry Sclerophyll Forests’ was created following the terminology used by Hunter (2005) in describing northern analogues to the ‘Southern Wattle Dry Sclerophyll Forests’ of Keith (2002) within the dry sclerophyll forests formation (shrubby subformation). Hunter describes these northern wattle forests, where they occur on the west-flowing catchments of the Northern Tablelands and North-Western Slopes, as being dominated by taxa within the Juliflorae tribe, which includes A. bulgaensis, and as having a closed canopy and sparse understorey, both of which features are recorded for this community. MU 124 — Rough-barked Apple / Narrow-leaved Ironbark / Blakely’s Red Gum / Bull Oak / Coast Banksia / Bracken woodland of Warkworth area Open forests to woodlands with a canopy characterised by Eucalyptus blakelyi, Angophora floribunda and E. crebra, and typically with a mid layer of smaller trees characterised by Allocasuarina luehmannii, Banksia integrifolia and Exocarpos cupressiformis. The understorey is typically shrubby and commonly includes Hibbertia linearis, Grevillea montana, Pimelea linifolia, Acacia filicifolia, Breynia oblongifolia and Notelaea neglecta (not recorded in this study in sites outside this community). The ground layer usually consists of a mix of grasses, including Aristida vagans, Cymbopogon refractus and Cynodon dactylon; graminoids, including Lomandra confertifolia and Dianella revolute; and ground ferns, including Cheilanthes austrotenuifolia and Pteridium esculentum. Naturalised species recorded in this community at more than 25% of sites were Senecio madagascariensis (Fireweed, 67%), Opuntia stricta var. stricta (Common Prickly Pear, 71%) and Hypochaeris radicata (Catsear, 29%). Within the study area, this community occurs mainly on Quaternary (Aeolian) sands in the Warkworth area of the Central Hunter Valley. MU 124 Rough-barked Apple / Narrowleaved Ironbark / Blakely’s Red Gum / Bull Oak / Coast Banksia / Bracken woodland of Warkworth area is equivalent to the Endangered Ecological Community ‘Warkworth Sands Woodland in the Sydney Basin Bioregion’ (DECC 2009). 106
MU 125 — Rough-barked Apple grass / forb riparian open forest 107 CHaPTeR 4 Results Open forests characterised by Angophora floribunda, and occasionally including various other eucalypts. The understorey is predominately grass, however, various shrubs may be present, including Melicytus dentatus, Acacia linearifolia and Persoonia linearis. Common grass species include Microlaena stipoides and Echinopogon ovatus. Common in the ground layer are ground ferns, including Pteridium esculentum and Cheilanthes sieberi; various forbs, including Hydrocotyle laxiflora, Dichondra repens and Stellaria pungens; and graminoids such as Lomandra longifolia. Naturalised species recorded at more than 25% of sites in this community include Sonchus oleraceus (Common Sowthistle, 27%) and Hypochaeris radicata (Catsear, 64%). This community occurs within the study area in gullies and riparian areas of sandstone ranges in the Goulburn River and Wollemi NP areas. MU 125 may have particular regional conservation significance as the rare forb Indigofera efoliata is recorded in this study only at sites in this community. MU 126 — Narrow-leaved Ironbark heath woodland in Goulburn River National Park Woodlands with a canopy dominated by Eucalyptus crebra, often in association with E. rossii. In some cases Allocasuarina gymnanthera may be present as a mid storey tree. The understorey is typically shrubby and may be densely shrubby, and commonly includes Acacia linearifolia, Phyllanthus hirtellus, Astroloma humifusum, Brachyloma daphnoides, Leucopogon muticus, Cassinia arcuata, Styphelia triflora and Cassinia laevis. The ground layer is usually grassy with the main grass species being Microlaena stipoides, Dichelachne micrantha, Digitaria ramularis and Echinopogon ovatus. The ground layer also commonly includes grass-like species, such as Gahnia aspera; ground ferns, mainly Cheilanthes sieberi; and various forbs, including Pomax umbellata, Oxalis perennans and Poranthera microphylla. No naturalised species were recorded at more than 25% of sites in this community. Within the study area, this community occurs on sandstone ranges of the Goulburn River area at mid elevations. MU 127 — Narrow-leaved Ironbark / Black Pine / Cassinia arcuata heathy open forest of the Upper Hunter Open forests characterised by an overstorey dominated by Eucalyptus crebra, in association with Callitris endlicheri and occasionally including E. dwyeri and E. punctata. The understorey is generally shrubby and commonly includes Cassinia arcuata, Styphelia triflora, Platysace ericoides, Leucopogon muticus, Melichrus urceolatus, Astroloma humifusum and Brachyloma daphnoides. The ground layer is typically grassy with common grasses including Microlaena stipoides, Joycea pallida, Aristida vagans and Austrostipa scabra. Also common and abundant in the ground layer may be ground ferns, mainly including Cheilanthes sieberi; graminoids, such as Lepidosperma laterale and Gahnia aspera; and forbs, including Pomax umbellata and Goodenia hederacea. No naturalised species were recorded at more than 25% of sites in this community. This community occurs within the study area on sandstone ranges of the Upper Hunter Valley and Goulburn River area at mid elevations.
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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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