1 flora
1.1 red ironbark
1.2 black cypress pine
1.3 mt pilot spider orchid
1.4 blakely’s red gum
flora
the chiltern-mt pilot national park protects 42 threatened species of flora of ten listed under flora , fauna guarantee act (vic). includes range of species such crimson spider orchid (caladenia concolor), yellow hyacinth-orchid (dipodium hamiltonianum), sturdy leek orchid (prasophyllum validum), warby swamp gum (eucalyptus cadens), mountain swainson-pea (swainsona recta) , narrow goodenia (goodenia macbarronii) listed endangered or vulnerable in victoria. other significant flora species found within park described below.
red ironbark
red ironbark (eucalyptus sideroxylon), known mugga ironbark, grows height of 10–30 metres (33–98 ft) in open forests along inland slopes of great dividing range in victoria, new south wales , southern queensland. flowering occurs throughout year 7 small flower buds in umbels appearing in axils of mature leaves. small fruits measuring 5–8 millimetres (0.20–0.31 in) appear approximately 1 month after flowering. leaf size known vary in response environmental factors including water availability , soil composition. both swift parrot , regent honeyeater visit park during winter take advantage of red ironbark’s peak flowering period.
black cypress pine
the park has largest reserved population of black cypress pine (callitris endlicheri) in victoria. native conifer commonly found in hilly areas of southeast australia climates relatively warm , dry. monoecious species wind pollinated , described having erect branches, tough furrowed bark , dark green foliage. species exhibits strong drought tolerance , ability survive in densely crowded strands though rate of maturation can slowed under these conditions. pine vulnerable changes in rainfall , grazing pressure rabbits , deer. pine highly susceptible fire , mortality follows exposure. chiltern-mt pilot pine population severely affected 2003 eldorado fire. places species @ greater risk of local extinction future fires, particularly if 2 fires occur in close succession.
mt pilot spider orchid
the mt pilot spider orchid (caladenia pilotensis) rare orchid species listed threatened under flora , fauna guarantee act (vic) , endangered department of sustainability , environment (dse). species described having hairy stem grows approximately 35 centimetres (14 in) in height, single basal leaf , light green yellow coloured flower pale red shading. deciduous herb originates population of approximately 100 individuals located inside 10 kilometres (6.2 mi) radius in mt-pilot section of park. can found in 4 small groups on drained soils of open grassy forest floor. little known ecology of orchid reported pollination severely restricted or absent in small populations. problem exacerbated decline in rate of flowering eucalyptus forests recover 2003 bushfires. risk of local extinction high owing small population size , threat of animal grazing, soil disturbance , weed invasion.
blakely’s red gum
blakely’s red gum (eucalyptus blakelyi) common native australian eucalypt found on inland slopes of great dividing range in new south wales , victoria. evergreen tree grows height of 25 metres (82 ft) , flowers predominantly between november , december on 2 three-year cycle depending on environmental conditions. seedling establishment affected common factors including temperature, light, litter accumulation, grazing, fire, frost , insect predation.
Comments
Post a Comment