Named after a mountain in the US Pacific Northwest (like Mt. Hood hops), Mount Rainier hops are a relatively new variety available to homebrewers.
It is a product of the John Henning led USDA-ARS breeding program in collaboration with Oregon State University. The parentage was hard to track down with some sources stating but as Mr. Henning stated below in the comments it is just a cross of Magnum and a numbered male variety.
I think that this hop variety would be a good substitution for some of the US grown German varieties. If you can’t find the exact variety you’re looking for, maybe give Mt. Rainier a try.
Origin: USA – USDA-ARS/Oregon State University at Corvallis
Aroma/Flavor: Spicy, Floral, Noble, Has an aroma with licorice notes and hints of citrus
Alpha Acid: 6 – 8%
Typical Usage: Aroma and Bittering
Beer Styles: American Ales and lagers. The licorice descriptor is making me think of a nice baltic porter.