Syn.: Ophrys spiralis L., Epipactis spiralis (L.) Crantz, Spiranthes autumnalis L. C. Richard
Family: Orchidaceae Juss.

Syn.: Stachys neglecta Klokov, Stachys micrantha C. Koch, Stachys betonica Crantz, Betonica annua L.
Family: Lamiaceae Lindl.

Syn.: Stachys palustris subsp. pilosa (Nutt.) Epling, Stachys palustris var. pilosa (Nutt.) Fernald
Family: Lamiaceae Lindl.

Syn.: Gonostemon erectiflorus (N. E. Br.) P. V. Heath
Family: Apocynaceae Juss.; Asclepiadaceae R. Br.

Syn.: Gonostemon hirsutus (L.) P. V. Heath
Family: Apocynaceae Juss.; Asclepiadaceae R. Br.

Syn.: Staphylodendron pinnatum (L.) Crantz
Family: Staphyleaceae (DC.) Lindl.

Family: Rapateaceae Dum.

Syn.: Cereus thurberi Engelm., Glandulicereus thurberi (Engelm.) Guiggi, Lemaireocereus thurberi (Engelm.) Britton et Rose, Marshallocereus thurberi (Engelm.) Backeb., Neolemaireocereus thurberi (Engelm.) Backeb., Pilocereus thurberi (Engelm.) Rümpler, Rathbunia thurberi (Engelm.) P. V. Heath
Family: Cactaceae Juss.

Syn.: Donia formosa G. Don, Clianthus formosus (G. Don) Ford et Vickery, Colutea novae-hollandiae Walp., Willdampia formosa (G. Don) A. S. George
Family: Fabaceae Lindl.

Syn.: Gentiana palustris All., Swertia perennis subsp. palustris (All.) Dostál, Swertia perennis subsp. alpestris auct. non Fuss in Baumg.
Family: Gentianaceae Juss.

Syn.: Lonicera alba (L.) Druce, Vaccinium album L., Xylosteon album (L.) Moldenke
Family: Caprifoliaceae Juss.

Family: Caprifoliaceae Juss.

Syn.: Aster ericoides L., Chrysopsis ericoides (Torr.) Torr. et James ex Eaton, Eucephalus ericoides (L.) Nutt., Lasallea ericoides (L.) Semple et L. Brouillet, Virgulus ericoides (L.) Reveal et Keener
Family: Asteraceae Bercht. et J. Presl

Syn.: Aster laevis L.
Family: Asteraceae Bercht. et J. Presl

Syn.: Aster bellidiflorus Willd., Aster lamarckianus Nees, Aster laxus Willd., Aster lanceolatus Willd., Aster paniculatus Lam. p. p., non Mill., Aster simplex Willd., Symphyotrichum simplex (Willd.) Á. Löve et D. Löve
Family: Asteraceae Bercht. et J. Presl