Central Taxonomic Thesaurus
Organism
Plantae
Pteridobiotina
Tracheophyta
Magnoliopsida
Asterales
[Otanthus]
[Cenia]
[Arnoldia]
[Evax]
[Lepachys]
[Cacalia]
[Lappa]
[Leuzea]
[Cnicus]
[Troximon]
[Venidium]
[Stobaea]
Problematic Rooting (1946)