- any of various eucalyptus trees of Australia, esp Eucalyptus saligna (the Sydney blue gum), that grow in damp soil
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for flooded gum
Flooded-gum overhung the inner banks of the river, or grew upon the many islands, with casuarina.
A circumstance that surprised us much, was the re-appearance of the flooded-gum upon its banks, and that too of a large size.
He found that it narrowed in width, and that its banks became steep, with a fine avenue of flooded-gum trees overhanging them.
Box and flooded-gum trees grow along the larger channels, and sometimes box flats extend into the scrub.Journals of Australian Explorations
A C and F T Gregory
On the small well-grassed flats along the watercourse, the flooded-gum and apple-trees grew to a considerable size.Journal of an Overland Expedition in Australia