Not an accepted name (status: unknown). No accepted name is recorded for it yet.

Physocarpus opulifolius var. opulifolius 1879 23% complete

No common name

Trudy Imp. S.-Peterburgsk. Bot. Sada 6: 220 (1879)

There is no corrections for Physocarpus opulifolius var. opulifolius yet.