Triarius (tree)

The Triarius, a tree, is a very large Eucalyptus regnans that is located in southern Tasmania, Australia. In 2010 the tree was estimated to be {{convert|86.5|m}} tall, its diameter was {{convert|3.9|m}}, and the volume of the trunk was {{convert|219|m3}}.{{cite web |url=http://gianttrees.com.au/ |title=Giant Trees. Tasmania's world class giants |publisher=Forestry Tasmania |accessdate=3 January 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20091225221628/http://gianttrees.com.au/ |archivedate=25 December 2009 }}

The tree was discovered in August 2008 by employees of Forestry Tasmania while analysing the data collected by LiDAR system used in mapping and assessment of state forest resources.{{cite web |url=http://www.forestrytas.com.au/news/2008/10/welcome-to-the-centurion |title=Welcome to the Centurion! |publisher=Forestry Tasmania |accessdate=3 January 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20140222100741/http://www.forestrytas.com.au/news/2008/10/welcome-to-the-centurion |archivedate=22 February 2014 }} The tree was discovered located in secondary forest and survived logging and forest fires by a lucky coincidence. Next to the Triarius, south-east from it there grows the highest known eucalypt in the world - the {{convert|100.5|m|adj=on}} tall E. regnans named Centurion.

In 2019 Triarius suffered major fire damage in the January 2019 bush fires. While not reduced in height many of the branches and leaves dropped off and its survival was uncertain months later.