Editing Eucalyptus marginata (section)

==Ecology==
Jarrah is regarded as one of the six forest giants found in Western Australia; the other trees include; ''[[Eucalyptus gomphocephala]]'' (tuart), ''[[Eucalyptus diversicolor]]'' (karri), ''[[Eucalyptus jacksonii]]'' (red tingle), ''[[Corymbia calophylla]]'' (marri) and ''[[Eucalyptus patens]]'' (yarri).<ref name=seed>{{cite web|url=https://australianseed.com/shop/item/eucalyptus-gomphocephala|title=''Eucalyptus gomphocephala''|access-date=22 August 2017|publisher=Australian Seed}}</ref><ref name=pfaf>{{cite web|url=https://pfaf.org/User/Plant.aspx?LatinName=Eucalyptus+gomphocephala|title=''Eucalyptus gomphocephala''|accessdate=28 April 2023|publisher=Plants For A Future}}</ref>

Jarrah is an important element in its [[ecosystem]], providing numerous habitats for animal life – especially birds and bees – while it is alive, and in the hollows that form as the heartwood decays. When it falls, it provides shelter to ground-dwellers such as the [[chuditch]] (''Dasyurus geoffroii''), a [[carnivore|carnivorous]] [[marsupial]].

Jarrah has shown considerable adaptation to different ecologic zones – as in the [[Swan Coastal Plain]] and further north, and also to a different habitat of the lateritic [[Darling Scarp]].<ref>Powell, Robert James and Emberson, Jane (1978).''An old look at trees : vegetation of south-western Australia in old photographs'' Perth : Campaign to Save Native Forests (W.A.). {{ISBN|0-9597449-3-2}} – has photographs of significant large old jarrah trees from the Swan Coastal Plain in the late 19th and early 20th centuries</ref>

Jarrah is very vulnerable to dieback caused by the [[oomycete]] ''[[Phytophthora cinnamomi]]''. In large sections of the [[Darling Scarp]] there have been various measures to reduce the spread of dieback by washing down vehicles, and restricting access to areas of forest not yet infected.

This evergreen hardwood tree lives for 400 or more years and typically reaches maturity at 70 - 120 years. Senescence is believed to occurs beyond 250 years. 

The jarrah tree produces an abundance of creamy white flowers during its blooming season which typically occurs between September and January. The jarrah is capable of flowering each year, but full the floral cycle takes three years to complete. Significant flowering events occur on a four to six year cycle, with most trees within any region flowering at the same time.<ref>{{Cite book |last=Abbott |first=Ian |title=Ecology of Jarrah (Eucalyptus marginata) in the Northern Jarrah Forest of Western Australia |publisher=Dept Conservation and Land Management, Western Australia |year=1986 |isbn=978-0-7309-1400-6}}</ref>