Sundew - Phylogenetics

Phylogenetics

For a complete list of species, see the separate article List of Drosera species.







Section Drosera*



Section Ptycnostigma




Section Drosera*




Section Thelocalyx






Subgenus Ergaleium



Subgenus Phycopsis






Section Bryastrum



Section Lasiocephala




Section Coelophylla






Section Drosera: Drosera arcturi*





Section Regiae



Aldrovanda





Dionaea


The unrooted cladogram to the right shows the relationship between various subgenera and classes as defined by the analysis of Rivadavia et al. in 2002. The monotypic section Meristocaulis was not included in the study, so its place in this system is unclear. More recent studies have placed this group near section Bryastrum, so it is placed there below. Also of note, the placement of the section Regiae in relation to Aldrovanda and Dionaea is uncertain. Since the section Drosera is polyphyletic, it shows up multiple times in the cladogram (*).

This phylogenetic study has made the need for a revision of the genus even clearer.

Read more about this topic:  Sundew