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HClNC Vegetation Classification & mapping Project: Volume 1: Vegetation Classification Technical Report
MU 151 — Silvertop Stringybark / Boxthorn woodland on basalt
Woodlands characterised by a canopy dominated by Eucalyptus laevopinea, occasionally in
association with E. rossii and with an open mid storey characterised by Acacia melanoxylon.
An open shrub layer may also be present and commonly includes Bursaria spinosa,
Cassinia quinquefaria, Astroloma humifusum and Daviesia genistifolia. The ground layer
is typically dominated by forbs, including Plantago gaudichaudii, Acaena novae-zelandiae,
Stellaria pungens, Galium migrans, Asperula scoparia and Viola betonicifolia. Grasses and
graminoids, such as Echinopogon ovatus and Lepidosperma laterale, may also be common but
less abundant. Naturalised species recorded at more than 25% of sites in this community
include Hypericum perforatum (St Johns Wort, 100%), Trifolium arvense (Haresfoot Clover,
33%) and Senecio madagascariensis (Fireweed, 100%).
Within the study area, this community is restricted to ranges in the Nullo Mountain area,
mainly on basalts.
MU 152 — White Box / Grass Tree / Spinifex woodland at Glenbawn Dam
Woodlands to open woodlands with an overstorey dominated almost exclusively by
Eucalyptus albens and commonly including Codonocarpus attenuatus. A shrubby understorey
is typically present and includes Xanthorrhoea glauca, Acacia decora, Olearia elliptica, Beyeria
viscosa, Daviesia leptophylla, Notelaea microcarpa and Spyridium buxifolium. Characteristically,
the understorey is dominated by grasses, in particular, Triodia scariosa and Themeda australis;
Austrodanthonia fulva is also relatively common. Various forbs may also be present at low
densities, including Gonocarpus elatus and Boerhavia dominii. Naturalised species commonly
recorded at sites in this community include Asphodelus fistulosus (Onion Weed, 50%) and
Opuntia stricta var. stricta (Common Prickly Pear, 100%).
This community is restricted within the study area to the Glenbawn Dam area in the Upper
Hunter Valley on sandstone substrates.
MU 153 — Snow Gum / Black Sallee wet shrub / grass open forest on the Barrington plateau
Open forests characterised by an overstorey dominated by Eucalyptus pauciflora, in
association with E. stellulata and E. obliqua. An open mid storey of taller shrubs, including
the rare shrubs Acacia barringtonensis and Leptospermum argenteum, may also be present
in some cases. The understorey typically includes an open shrub layer with common
species being Acrothamnus hookeri, Persoonia chamaepeuce, Pimelea linifolia, Hakea microcarpa
Pultenaea fasciculata and Olearia chrysophylla. The ground layer is typically dominated
by Poa sieberiana, with a diverse range of forbs and graminoids also common including
Stylidium graminifolium, Wahlenbergia stricta, Lomandra longifolia, Stellaria flaccida, Gonocarpus
teucrioides, Scaevola hookeri and Ranunculus plebeius. Naturalised species which were
recorded at more than 25% of sites in this community were Trifolium repens (White Clover,
33%) and Hypochaeris radicata (Catsear, 67%).
Within the study area, this community is restricted to the Barrington Tops area at
high elevations and mainly on basalts. This community may be of particular regional
conservation significance as it relates to the Endangered Ecological Community ‘Ribbon
Gum, Mountain Gum, Snow Gum Grassy Forest/Woodland of the New England Tableland
Bioregion’ DECC 2009). In addition, a number of rare species are not recorded in this
study from any other community but may be relatively common in this community. These
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