| The Asian species are represented by three specific and two infraspecific taxa. |
| This nomenclator contains all specific and infraspecific names attributed to the suborder. |
| At the time of the last revision of the genus, Apios americana Medikus was the only described North American species and none of its six infraspecific taxa had been described. |
| Data are presented for a total of 223 species in Canada, including 18 species with more than one infraspecific taxon, for a total of 248 taxa. |
| The known vascular flora of the Preserve consists of 538 specific and infraspecific taxa from 310 genera in 98 families. |
| The present work represents the first comprehensive treatment of Alnus maritima at the infraspecific level. |
