Spiraea douglasii subsp. menziesii (Hooker) Calder & Roy L. Taylor

Spiraea douglasii subsp. menziesii (Hooker) Calder & Roy L. Taylor is a synonym sensu FNA Ed. Comm., 2014 of:

Spiraea douglasii var. menziesii (Hooker) C. Presl, an accepted variety name sensu FNA Ed. Comm., 2014.