⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Physocarpus intermedius in version 1.1 of The Plant List.
This name is a synonym of Physocarpus opulifolius var. intermedius .
The record derives from Tropicos which reports it as a synonym (record
50004741) with original publication details: Ill. Handb. Laubholzk. 1(5): 807 807 1906.
Full publication details for this name can be found in IPNI: