Genus
Spiraea (Meadowsweet)
Spiraea douglasii. Photo: (c) Katrina Martin, some rights reserved (CC BY-NC)
Spiraea /spaɪˈriːə/,, sometimes spelled spirea in common names, is a genus of about 80 to 100 species of shrubs in the family Rosaceae. They are native to the temperate Northern Hemisphere, with the greatest diversity in eastern Asia.