Taxon: Physocarpus opulifolius (L.) Maxim. var. intermedius (Rydb.) B. L. Rob.

Summary

Genus:

Physocarpus

Family:

Rosaceae

Subfamily:

Amygdaloideae

Tribe:

Neillieae

Nomen number:

454715

Place of publication:

Rhodora 10:32. 1908

Verified:

01/23/2008 ARS Systematic Botanists.

Accessions:

0 (0 active, 0 available) in National Plant Germplasm System.

Other conspecific taxa

Physocarpus opulifolius (L.) Maxim. (45 active accession[s])
Physocarpus opulifolius (L.) Maxim. var. opulifolius (0 active accession[s])

Autonyms (not in current use), synonyms and invalid designations

Basionym
Opulaster intermedius Rydb.

Homotypic Synonym(s)
Physocarpus intermedius (Rydb.) C. K. Schneid.

Images (1 total. Click on image for more.)

Conservation Status

Reference(s)

Gleason, H. A. & A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2
McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
Ownbey, G. B. & T. Morley. 1991. Vascular plants of Minnesota: a checklist and atlas
Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
Smith, E. B. 1978. An atlas and annotated list of the vascular plants of Arkansas

Common names

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Northern America	Eastern Canada	Canada	Ontario		Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
1	Native	Northern America	North-Central U.S.A.	United States	Illinois
1	Native	Northern America	North-Central U.S.A.	United States	Iowa
1	Native	Northern America	North-Central U.S.A.	United States	Kansas		McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
1	Native	Northern America	North-Central U.S.A.	United States	Minnesota		Ownbey, G. B. & T. Morley. 1991. Vascular plants of Minnesota: a checklist and atlas
1	Native	Northern America	North-Central U.S.A.	United States	Missouri
1	Native	Northern America	North-Central U.S.A.	United States	Nebraska		McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
1	Native	Northern America	North-Central U.S.A.	United States	North Dakota		McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
1	Native	Northern America	North-Central U.S.A.	United States	Oklahoma		McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
1	Native	Northern America	North-Central U.S.A.	United States	South Dakota		McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
1	Native	Northern America	North-Central U.S.A.	United States	Wisconsin
1	Native	Northern America	Northeastern U.S.A.	United States	Indiana
1	Native	Northern America	Northeastern U.S.A.	United States	Michigan
1	Native	Northern America	Northeastern U.S.A.	United States	Ohio
1	Native	Northern America	Southeastern U.S.A.	United States	Arkansas		Smith, E. B. 1978. An atlas and annotated list of the vascular plants of Arkansas
4	Naturalized					natzd. elsewhere

Native
Northern America

EASTERN CANADA: Canada [Ontario]
NORTHEASTERN U.S.A.: United States [Indiana, Michigan, Ohio]
NORTH-CENTRAL U.S.A.: United States [Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, South Dakota, Illinois, Oklahoma, Wisconsin]
SOUTHEASTERN U.S.A.: United States [Arkansas]

Naturalized (natzd. elsewhere)

Reference(s)

McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
Ownbey, G. B. & T. Morley. 1991. Vascular plants of Minnesota: a checklist and atlas
Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
Smith, E. B. 1978. An atlas and annotated list of the vascular plants of Arkansas

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgstest.ars-grin.gov/gringlobal/taxon/taxonomydetail?id=454715. Accessed 26 April 2026.