China, Japan, Korea
Southwestern United States, Mexico, Central America, South America
jiujiangense, horizontale
Mexican oregano,Mediterranean oregano
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 20, 21
8, 9, 10, 11, 12, 13, 19, 20, 21, 22, 23, 24