Physocarpus malvaceus (Mallow Ninebark) is a species of shrub in the family Rosaceae. They have a self-supporting growth form. They are native to Canada, The Contiguous United States, Western North America, and United States. They have simple, broad leaves and white flowers. Flowers are visited by Hawthorn Andrena, Andrena miranda, Andrena candida, and Andrena saccata. Individuals can grow to 15 feet.
EOL has data for 72 attributes, including: