View Full Version : Gum question

drinksgin (deceased)
08-09-2015, 11:48 AM
I am curious, what is it about eucalyptus trees that prompts the name of "Gum".
I know of 2 trees in the US natives that have gum in the name, sweet gum. Liquidamber styratafolio, which has slightly sweet sap that occurs as a material similar to chewing gum and black tupelo, aka black gum, Nyata sylvatica, which, to my limited knowledge, makes nothing similar to chewing gum.

08-12-2015, 07:35 AM
Believe are known as gum trees because they exude copious kino (https://en.wikipedia.org/wiki/Kino_%28gum%29) ( gum ), from any break in the bark (https://en.wikipedia.org/wiki/Bark).

08-12-2015, 10:41 AM
Thanks for the links, jaeger88. We have a few eucalypts here in the US that were imported from Australia, especially in California. (In fact, I don't know of them anywhere else in the US.) I used to salvage wood from them when the city of San Diego would cut them down or clear blow-downs. None of the species I ran across here in the States exuded 'gum'. On the contrary actually, I thought they were a bit 'drier' than other local trees. However, when I was in Australia I saw what variety there is among eucalyptus. There must be hundreds of species. I am sure that several, if not many, exude 'gum'.


drinksgin (deceased)
08-20-2015, 09:51 AM
I do know of some plantings of eucalyptus trees, specie not known, in S. Texas, mostly along H. 281.
All I have seen are south of San Antonio, so I would infer that they are at least somewhat frost tender.