This beer style is the typical US craft beer style. It is characterized by its characteristic floral, lemony or fruity hop aromas. Most American India Pale Ales also have a pronounced bitterness that is enhancing the citrus-like hop appearance. Typically, American IPAs are very dry beers with just a hint of malt (Pale ale or 2-row). In this regard it is "edgier" than the more smooth American Pale Ale.
A typical specimen of this beer style is the Russian River Blind Pig IPA.