Hybrid origin
Western United States, Northwestern United States, Southwestern United States, California, Canada, Mexico
boissieri , cupanii , hungaricum , kesselringii
not available
21,22
H1, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21