Wiktionary
steeplebush
n. (taxlink Spiraea tomentosa species noshow=1), a plant with narrow pyramidal clusters of flowers and a dense woolly tomentum.
Wikipedia
Steeplebush
Steeplebush is a common name for several plants and may refer to:
- Spiraea douglasii, native to western North America
- Spiraea tomentosa, native to eastern North America