spiraea
Concise Oxford English Dictionary © 2008 Oxford University Press:
spiraea /spʌɪˈriːə/ (chiefly US also spirea)
▶noun a shrub of the rose family with clusters of small white or pink flowers, cultivated as an ornamental. [Genus Spiraea.]
– origin mod. L., from Gk speiraia, from speira ‘a coil’.
'spiraea' also found in these Oxford entries:

