Plant material and sources for specimen data

Sources of names and compilation into a checklist of the species of the Gynoxys clade

Definition and assessment of morphological characters and states

Ancestral character state reconstruction

Extraction, amplification and phylogenetic tree inference of nuclear ribosomal DNA

Assignment of all species to genera and evaluation of taxon concept at species level

Morphological characters of taxonomic relevance on supra-specific level

Morphological characterisation of the members of the Gynoxys clade

Phylogenetic trees inferred from nuclear ribosomal markers

Character evolution in the Gynoxyoids based on the phylogenetic hypothesis of the plastome tree

Checklist of the Gynoxys clade

Trees inferred from plastid genomes and putative cytonuclear discordance

Evolution and significance of morphological characters in the Gynoxys clade

Species diversity of the Gynoxyoid clade

Taxonomic conclusions

Key to the genera of the Gynoxyoid clade

Revised classification of the genera and species of the Gynoxyoid clade

Excluded names

Names of doubtful status

Conflict of interest

Ethical statement

Funding

Author contributions

Author ORCIDs

Data availability