This section is from the book "Field Book Of Western Wild Flowers", by Margaret Armstrong. Also available from Amazon: Field Book Of Western Wild Flowers.
This is a handsome bush, from three to six feet high, with pretty, almost smooth, bright green leaves, with large stipules. The flowers are sweet-smelling, about half an inch across, with cream-white petals, and form very beautiful and conspicuous rounded clusters, about three inches across, the long stamens giving a very feathery appearance. At a distance this shrub has the effect of Hawthorn in the landscape. It grows on mountainsides in rich soil.

Ninebark- Opulaster malvaceus. ROSE FAMILY. Rosaceae.
 
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