hops: a pretty little green flower that grows on a vine and kinda look a bit like a pinecone. hops are considered the spice in a beer. if emeril were a brewer these would be his "bam!"
there are literally hundreds of varieties of hops. from citrusy to grassy to piney to floral-y to herbal-y. and every beer (especially IPAs) will taste different depending on the hops used.