As most of you already may know there are several variants of acacia acuminata around.

Which variant out of the following contains the highest dmt content. I've searched with no luck.

Typical variant bark
Narrow phyllode trunk bark
Narrow phyllode root bark

If I recall correctly the narrow phyllode variety bark has higher content.
But please remember that it's small twigs (like toothpick sized or about that thickness) that have the highest bark to biomass ratio and also are somewhat more ethical to harvest until somebody will come up with liquid cultures of some microrganism in liquid culture.

So once again no need to strip bark off a trunk or dig up roots, both kill the plant, are not sustainable so leave you without further harvestable material.

There are a few very informative Acacia threads
https://www.dmt-nexus.me...aspx?g=posts&t=27722
https://www.dmt-nexus.me...aspx?g=posts&t=23472

https://wiki.dmt-nexus.me/Acacia_acuminata

Thanks for your cooperation