Spiraea densiflora subsp. splendens (Baumann ex K. Koch) Abrams

Spiraea densiflora subsp. splendens (Baumann ex K. Koch) Abrams is a synonym sensu FNA Ed. Comm., 2014 of:

Spiraea splendens Baumann ex K. Koch var. splendens, an accepted variety name sensu FNA Ed. Comm., 2014.