That will narrow it down. You could try contacting Costa Farms with where you bought it and what type of plant it was, they may be able to be more specific

In the meantime, amphibians from China (there's so many!):

http://amphibiaweb.org/cgi-bin/amphi...re-isocc=China

and the Dominican:

http://amphibiaweb.org/cgi-bin/amphi...nican+Republic

I don't know much about either, but I'll have a browse when I have time