Taxonomic history:
   1753: Linnaeus described this species as Valeriana locusta in Species Plantarum, 1st ed., p. 33.
   today: The current name for this species is Valerianella locusta (L.) Laterr.

Original Latin diagnosis:
Valeriana floribus triandris, caule dichotomo, foliis linearibus.

English translation:
Valeriana with flowers three-stamened, with a stem dichotomous, [and] with leaf blades linear.

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
with a stem	caule - ablative singular of third declension masculine noun caulis, caulis
dichotomous;	dichotomo - ablative singular masculine of group A adjective dichotomus, -a, -um; modifies caule
[and]	[added for smoother reading]
with leaf blades	foliis - ablative plural of second declension neuter noun folium, -i
linear.	linearibus - ablative plural neuter of group B adjective linearis, -is, -e; modifies foliis