Willamette hops were historically one of the most prevalent hops grown in the United States that accounted for nearly 20% of the hop crop at its peak. Willamette is the daughter of Fuggle and carries with it the same pepper and spice. It is primarily used as an aroma hop due to its low Alpha Acid content, which usually sits around 4-6%. Works really well when brewing darker styles for the colder months.
Info From Yakima Valley Hops