Southwestern United States, Mexico
North America, Europe, Western Asia
Not Available
lupulus , cordifolius , lupuloides , neomexicanus , pubescens
12, 13, 18, 19, 20, 21
A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21