Comments: The real deal. Walnut is unique in that it is one of the only woods that is naturally rich, deep chocolate brown (though it can sometimes be slightly lighter as well). It's almost never stained, and is very popular for use in furniture. It's also not uncommon to see walnut used in veneered pieces as well.
Lookalikes: Mahogany (sometimes it's stained very dark and the color can appear very similar to walnut). Butternut (sometimes called "White Walnut," it's related to walnut, but is paler in color and very lightweight).