They are pretty neutral, like it says below - balanced.
Galena is a high alpha variety that was developed in the
Idaho state breeding program in 1978. It has balanced bittering
properties combined with an agreeable aroma profile.
Galena’s storage stability is excellent. It has often used in
both English and American-style Ales.
Yield (kilos per hectare) 1,904 - 2,352
Yield (lbs per acre) 1,700 - 2,100
Alpha Acids 11.5 - 13.5%
Beta Acids 7.2 - 8.7%
Cohumulone (% of alpha acids) 36 - 40%
Total Oils (Mls. per 100 grams dried hops) 0.9 - 1.3
Myrcene (as % of total oils) 55 - 60%
Caryophyllene (as % of total oils) 4.5 - 5.5%
Humulene (as % of total oils) 10 - 13%
Farnesene (as % of total oils) < 1.0%
Storage (% alpha acids remaining after 6 months storage at 20° C) 79%
Possible Substitutions Nugget, CTZ