Notes

Flora of North America recognizes four varieties of H. lupulus, three of them are native to the U.S. Variety lupulus is widely known for the hops used to make beer, this species was introduced from Europe. Varieties lupuloides, neomexicanus and pubscens are native to the U.S. Our native variety, neomexicanus, is found in the midwestern states, south to Texas and west to California. Variety pubescens is found primarily in the midwestern states, and variety lupuloides is found primarily in the northeastern and midwestern states.

Hops are wind pollinated and dioecious, which means male and female flowers form on separate plants.