Analysis of information sources in references of the Wikipedia article "Yarra Ranges National Park" in English language version.
Mountain ash is the tallest hardwood tree in the world with specimens reaching 80 metres or more in height. Only the softwood Californian redwoods (Sequoia sempervirens) are taller, one of these having been recorded at about 113 metres. However, it is believed that specimens of E.regnans felled during the 1800s may have reached more than 140 metres (Guiness Book of Records), making the species the tallest tree ever recorded on earth in historic times. Sadly, all of these majestic giants have been felled.
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