Taxonomic history:
   1753: Linnaeus described this species as Valeriana tripteris in Species Plantarum, 1st ed., p. 32.
   today: The current name for this species is Valeriana tripteris L.

Original Latin diagnosis:
Valeriana floribus triandris, foliis radicalibus cordatis; caulinis ternatis lanceolatis serratis.

English translation:
Valeriana with flowers three-stamened, with leaf blades [those] arising from the root cordate, [the] cauline [ones] ternate, lanceolate, [and] serrate.

English translation with commentary:

Valeriana	Valeriana
with flowers	floribus - ablative plural of third declension masculine noun flos, floris
three-stamened	triandris - ablative plural masculine of group A adjective triandrus, -a, -um; modifies floribus
[and]	[added for smoother reading]
with leaf blades	foliis - ablative plural of second declension neuter noun folium, -i
[those] arising from the root	radicalibus - ablative plural neuter of group B adjective radicalis, -is, -e; modifies foliis
cordate,	cordatis - ablative plural neuter of group A adjective cordatus, -a, -um; modifies foliis
[the] cauline [ones]	caulinis - ablative plural neuter of group A adjective caulinus, -a, -um; modifies foliis
ternate,	ternatis - ablative plural neuter of group A adjective ternatus, -a, -um; modifies foliis
lanceolate,	lanceolatis - ablative plural neuter of group A adjective lanceolatus, -a, -um; modifies foliis
[and]	[added for smoother reading]
serrate.	serratis - ablative plural neuter of group A adjective serratus, -a, -um; modifies foliis