Taxonomy Links
Please keep in mind that the following checklist pages do not necessarily use the current name for a given species. The U.S. checklist, for example, appears not to have incorporated many European and Asian papers that affect nomenclature of North American plants. They pages do, however, provide good synonymy.
| Biota of North America Program U.S. Checklist | Checklist of World Ferns | Flora of North America Published Volumes Page | |
| A comprehensive searchable database of seed plant names with date and place of publication and authorities. | A synonymized checklist of United States tracheophytes with distribution maps. | A synonymized checklist of free-sporing tracheophytes (i.e., ferns and fern allies) of the world. |
A digital version of the published Flora of North America volumes. |
| Home page of Dr. Semple, an expert in North American asters and goldenrods, with informative pages on new generic names. | A searchable directory of plant taxonomists that allows one to find experts in various fields. | A comprehensive world treatment of tracheophyte families written by Watson and Dallwitz that utilizes modern taxonomy. | A searchable directory tracheophyte names proposed for conservation or rejection, with references to proposal dates and final disposition of names. |
| Angiosperm Phylogeny Group Ordinal Classification | Index Nominum Genericorum (Plantarum) | Phylocode | International Code of Botanical Nomenclature |
| Comprehensive listing of tracheophyte taxonomy above the family level utilizing modern phylogenetic methods. | Comprehensive searchable database of all validly published generic names for plants with citation information. | An online version of the draft rules governing phylogenetic nomenclature and the naming of clades, to be used concurrently with the existing code of botanical nomenclature. | An online version of the most current edition of the code (Tokyo Code). |