I chim in a bit as I have some experience on CITES import and export.
Between EU countries you can move freely the trees with some exceptions. Example if in one country have an epidemic with a species, that species got restricted to moving out of the border without expensive examinations and quarantine procedures.
Shipping outside of EU depends the CITES appendix or the EU annex of the species.
Search for the species here :
Or there :
For the U.S it’s a bit more complicated, cause you need to pay the same rate for one tree that you would pay for 80 trees. Simply not worth it, unless you do through an import-export agency where they group shippings for keep the price reasonable and doing the quarantine for you.
The process takes between 3 and 8 weeks (without quarantine) and the costs depends the countries.
LB, send me this Pine.. I take the responsibility for the shipping. Under CHF 300 I don’t even need to declare it...