[plants] Haeckel (1866) - plants
   vascular plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
     euphyllophytes see Clade Euphyllophyta Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020]
       Spermatophyta Britton & Brown 1896 [Crane & Kenrick 1997], nom. cl. inval. - seed plants see Clade Spermatophyta Britton & Brown 1896 [Cantino, Doyle & Donoghue 2020]
         Class Magnoliopsida Brongn. (1843)
           Monocotyledons see Superorder Lilianae Takht. (1967)
             Order Dioscoreales Mart. (1835)
               Family Thismiaceae J.Agardh (1858), nom. cons.
                 1 Genus Afrothismia (Engl.) Schlechter (1906)
                 2 Genus Haplothismia Airy Shaw (1952)
                 3 Genus Oxygyne Schlechter (1906)
                 4 Genus Thismia Griff. (1845)
                 5 Genus Tiputinia