Flora van Nederland Haeckel (1866) - plants
   Division Spermatophyta Goebel (1882) see Phylum Spermatophyta Goebel (1882)
     Subdivision Angiospermae J. Lindley (1830) see Infraphylum Angiospermae auct.
       Class Dicotyledones see Class Magnoliopsida Brongn. (1843)
         Order Ericales Bercht. & J.Presl (1820)
           Family Pyrolaceae Dumort. (1829) see Tribe Pyroleae
             Genus Monotropa L. (1753)
               Monotropa hypopitys L. - pinesap
                 Monotropa hypopitys subsp. hypophegea (Wallr.) Holmb.