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  • Tilia americana (category Tilia)
    as T. americana var. mexicana (Schlechtendal) Hardin. D. Pigott (2012) treated native tilias of North America as: Tilia americana var. americana, T. americana
    7 KB (678 words) - 23:20, 5 November 2020
  • ponderosa changes from var. scopulorum in the north to var. arizonica in the south. In Arizona and New Mexico, Picea engelmanii and Abies bifolia "var. arizonica"
    133 KB (20,036 words) - 18:33, 13 February 2019