G'day Escamillo ... and katlaughing,We have a lot of Jacaranda trees in Australia (ferals ... but very pretty - and almost naturalised up in the New England region) and they are of the genus jacaranda ... however, the timber (despite also being called jacaranda) that Escamillo describes is, almost certainly, of the dalbergia genus - the same family as Brazilian and Indian Rosewoods ... and African Blackwood.
These are all great timbers, much prized in instrument making, so Escamillo's Argentinian guitars bear checking out.
Regards,
Bob Bolton