Taxonomic history:
1753: Linnaeus described this species as Polypodium trifoliatum in Species Plantarum, 1st ed., p. 1087 of Ray Society 1957 facsimile.
Today: The current name for this species is Tectaria trifoliata (L.) Sw.
original Latin diagnosis
Polypodium fronde ternata sinuato-lobata: intermedia majora.
English translation
Polypodum with a frond ternate [and] sinuate-lobed: [and] with the middle [lobe] larger.
| Polypodium | Polypodium |
| with a frond | fronde - ablative singular of third declension feminine noun frons, frondis |
| ternate | ternata - ablative singular of group A adjective ternatus, -a, -um; modifies fronde |
| [and] | [added for smoother reading] |
| sinuate-lobed: | sinuato-lobata = sinuato- (combining form of group A adjective sinuatus, -a, -um) + lobata (ablative singular feminine of group A adjective lobatus, -a, -um); modifies fronde |
| [and] | [added for smoother reading] |
| with the middle [lobe] | intermedia - ablative singular feminine of group A adjective intermedius, -a, -um; agrees with fronde |
| larger. | majora - ablative singular feminine of comparative degree of group A adjective magnus, -a, -um; modifies intermedia |