Taxonomic history:
   1753: Linnaeus described this species as Geum virginianum in Species Plantarum, 1st ed., p. 500.
   today: The current name for this species is Geum virginianum L.

original Latin diagnosis
Geum floribus erectis, fructu globoso: aristis uncinatis nudis, foliis ternatis.

English translation
Geum with flowers erect; with fruit globose, the awns hooked [and] naked; [and] with leaf blades ternate.

English translation with commentary

Geum	Geum
with flowers	floribus - ablative plural of third declension masculine noun flos, floris
erect;	erectis - ablative plural masculine of perfect passive participle of third conjugation verb erigo, erigere, erexi, erectum); modifies floribus
with the fruit	fructu - ablative singular of fourth declension masculine noun fructus, fructus
globose	globoso - ablative singular masculine of group A adjective globosus, -a, -um; modifies fructu
with the awns	aristis - ablative plural of first declension feminine noun arista, -ae
hooked	uncinatis - ablative plural feminine of group A adjective uncinatus, -a, -um; modifies aristis
[and]	[added for smoother reading]
naked;	nudis - ablative plural feminine of group A adjective nudus, -a, -um; modifies aristis
[and]	[added for smoother reading]
with leaf blades	foliis
ternate.	ternatis - ablative plural neuter of group A adjective ternatus, -a, -um; modifies foliis