Fresh cut acacia:
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Seasoned acacia, was laying in the bushes on the ground for about 2-3 years, still yellow colored once plit, no rot, bug infested only directly under the bark which by now falls off easily:
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I though I had pictures of split acacia but nope, can't find any on my PC - will try and get some.
Acacia is tough, grows fast as grass, endures rot and bugs for decades untreated (it decays slowly from the outside inward).
EDIT:
Greenish yellow color, strong (not unpleasant) smell, young growth features large sharp thorns.