this a pic i took on vacation in mexico. looks like some sort of dieffenbachia, has 2-3' cane trunk, but coloration is quite unusual limey-yellow. it could be some sort of nutrient deficiency though. hard to tell. it's in the hotel atrium where plants are pretty well maintained in general, it gets sev hours of sun thru roof-glass, though it's 8fl atrium, so is very high. it's clearly a cultivated variety.
there is a mexican indigenous dief. oerstedii that looks very similar on the link below only green. but other sites show totally different plant under the same name(shorter leaves and a white stripe in the middle). i would tend to think that most likely it's the local d.oerstedii, but who knows...
see the 1st pic in the link:
http://olabrisagardens.com/fol...
there are species growing in central america that look very similar.
a few candidates are d. longispatha and also d.parlatorei. but i would think that it is from a local mexican nursery, so probably not an imported variety, but i am not that familiar with what is available in mexico.