As classified in WFO snapshot
December 2024
latest classification for this taxon
variety
Sium lineare var. intermedium
Torr. & A.Gray
This variety name was first published in Fl. N. Amer. (Torr. & A. Gray) 1(4): 611. 1840 [Jun 1840]
This variety name has been reclassified since this snapshot. Its current preferred usage is a synonym .