| The Asian species are represented by three specific and two infraspecific taxa. |
| What deviations are indicative of incorrectly identified material rather than natural infraspecific variation? |
| 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. |
| Profiles were used for identification of species-level and infraspecific chemical patterns across both genetic distance and landscape. |
| The known vascular flora of the Preserve consists of 538 specific and infraspecific taxa from 310 genera in 98 families. |
| Several infraspecific taxa have been recognized but the current classification should be regarded as tentative and further studies based on molecular data are needed. |
