The behavior of the reverse designator between these two resources is inconsitent.
when you select a harvest-possible non-tree like a raspberry bush it gives you two choices if the plant is mature enough. Trees however do not, they always give the chop wood option, which in turn acts like cut plant not chop wood. No wonder folks find it confusing.
I submit it would be better if not less confusing to implement the same logic for trees or make only one option available for either. the harvest version if its mature and the cut plant if it is not.
recent posts about it
http://ludeon.com/forums/index.php?topic=13615.0
to which i posted the logic you and i presented in this bug post on the testers forum
http://ludeon.com/forums/index.php?topic=13423.0