Cynapium apiifolium Nuttall ex Torrey & A. Gray

Cynapium apiifolium Nuttall ex Torrey & A. Gray is a synonym sensu FNA Ed. Comm., 2024 of:

Ligusticum apiifolium (Nuttall ex Torrey & A. Gray) A. Gray, an accepted species name sensu FNA Ed. Comm., 2024.