Taxonomic history of the circumscription of Saxifraga sect. Trachyphyllum.

1The list of included species uses currently accepted names (see Table 1) and is only exhaustive for S. sect. Trachyphyllum. For the other genera, the lists of taxa are abbreviated to only show species circumscribed at some point within S. sect. Trachyphyllum.2Small considered these taxa individual species.3Engler and Irmscher considered S. bryoides a subspecies of S. aspera and the others as varieties within S. bronchialis.4Given as S. multiflora in these references.5Losina-Losinskaya only focused on taxa occurring within the U.S.S.R. and assumed S. bronchialis subsp. funstonii synonymous with S. cherlerioides.6Calder and Savile only focused on North American taxa.7Siplivinsky and Khokhryakov were only concerned with taxa of the U.S.S.R.