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  • Sagittaria latifolia (category Sagittaria)
    Illustrated Synonyms: Sagittaria latifolia var. obtusa (Muhlenberg) Wiegand Sagittaria latifolia var. pubescens (Engelmann) J. G. Smith Sagittaria ornithorhyncha Muhlenberg
    4 KB (401 words) - 21:30, 5 November 2020
  • Chapter 5
    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