*Armoracia rusticana G. Gaertner, B. Meyer, & Scherbius. Phen: Mar-Jul. Hab: Persistent after cultivation in meadows, roadsides, streambanks, sometimes spreading (generally only very locally, but sometimes greater distances, probably by water transport of rhizomes). Dist: Native of Europe.
Origin/Endemic status: Europe
Other Comments: The root is grated to provide the condiment.
Synonymy: = C, FNA7, G, GrPl, Il, K1, K3, K4, Mi, NE, NY, Pa, RAB, Z, Al-Shehbaz (1988a), Rollins (1993); = Armoracia armoracia (L.) Britton – S; =? Armoracia lapathifolia Gilib. – F