Physocarpus opulifolius
ninebark
 
Physocarpus opulifolius is known as "ninebark" for the layers of bark visible on older specimens in the winter. It is a well-known and popular shrub in the gardening world but almost impossible to find as a straight species! The natural beauty of this straight species is stunning.
 
With its delicate, pretty flowers and rich, green foliage, this shrub adds a pop of color to any garden landscape. In addition to its aesthetic appeal, the ninebark is also an important shrub for wildlife, providing food and shelter for birds and small animals.
 
Photo credit to: Ayotte, Gilles, 1948