A belgian style beer almost invariably refers to a Belgian yeast strain. The wheat ale yeast you refer to is probably a hefeweizen yeast strain, that's German, as opposed to Belgian. Belgian wits are a fairly popular style, so maybe that's why you confused the two? That being said, you can throw a Belgian yeast strain on just about any grain bill and it will come out cool - which is why you see a lot of these beers like Raging Bitch, Cali-Belgique, and Tank 7 Ale.
If you can read this, you need to drink more beer.