Zigadenus venenosus var. ambiguous M.E. Jones

Zigadenus venenosus var. ambiguous M.E. Jones is a synonym sensu FNA Ed. Comm., 2002b of:

Toxicoscordion venenosum (S. Watson) Rydberg var. venenosum, an accepted variety name sensu Zomlefer & Judd, 2002.