Flora of The Australian Capital Territory - Vegetation Habitats

Vegetation Habitats

Grassland originally occurred on the low plains around north Canberra, Woolshed creek in Majura, Jerrabomberra Creek in Symonston, Gerrabomberra Creek in Belconnen, Tuggeranong Creek in Isabella Plains and Yarralumla Creek in Woden Valley. Almost all of these areas have been built over by suburbs, or modified by farming. The main plants from the grasslands were Stipa, Danthonia and Themeda (spear grass, wallaby grass and kangaroo grass). Trees do not exists on the grasslands due to the frost hollow effect where cold heavy air sinks on frosty mornings killing off larger vegetation. The remains of the grasslands are now full of introduced weeds and grasses. A small reserve of remanent grasslands is found at Yarramundi on the north side of Lake Burley Griffin.

Most of the trees in the ACT are Eucalyptus species.

Low altitude woodland is dominated by Eucalyptus melliodora (yellow box) and Eucalyptus polyanthemos (red box). E. blakelyi is found in lower lying areas. E. bridgesiana grows along creeks. In sandy soil near rivers Casuarina cunninghamiana is common. On the border between woodland and grassland Eucalyptus pauciflora (snow gum) and Eucalyptus rubida are the only trees growing. These trees can survive lower temperatures.

High altitude woodland occupies the floor of the higher valleys in the south of the ACT. The trees are dominated by E. stellulata (black sally) and snowgums.

On the ground above the woodland there is dry sclerophyll forest. The trees in this are Eucalyptus dives (broad leaved peppermint), E. mannifera var maculosa (red spotted gum), the scribbly gum (Eucalyptus rossii) and red stringy gum (Eucalyptus macrorhyncha). Mount Majura, Mount Ainslie, Bullen Range, and Black Mountain are covered in this kind of forest. Dry sclerophyll forest also grows on the north and west side of hills, below 660 meters, which is warmer and dryer. Gulleys in this kind of forest can contain Eucalyptus viminalis (manna gum) and Eucalyptus radiata var robertsonii (narrow leaved peppermint).

Wet sclerophyll forest is found growing on the western mountainous parts of the ACT where rain fall is higher and the ground is more elevated. E. fastigata (brown barrel) and Eucalyptus delegatensis (alpine ash) dominate the forest. Dense shrubs up to five meters high form an understorey. Examples of these are Leptospermum lanigerum, Pomaderis aspera, Olearia argophylla, and Bedfordia salicina. The top side of this forest has Eucalyptus dalrympleana and E. pauciflora starting to take over.

Alpine woodland is found in the highest levels of the ACT with E. pauciflora the dominant tree. This grows either thinly or in clumps, with the intervening ground feature Poa species.