I'm not sure what type of palm tree this is. This is taken in Arizona. I think it is a canary island date palm.
2 Answers
It looks like Phoenix canariensis to me, which is, indeed, commonly known as Canary Island Date Palm, although it doesn't produce dates - the one that does is Phoenix dactylifera. It does produce drupes, the flesh of which is edible, but thin and not worth eating.
http://www.capeoasis.com/garden/html/phoenix_canariensis.html
I am pretty sure that's a sable Palm which has a lot of AKAs such as cabbage Palm.
Sabal palmetto is one scientific name and also like the common name has many taxonomic synonyms.