Taxon: Eutrochium maculatum (L.) E. E. Lamont

Summary

Genus:

Eutrochium

Family:

Asteraceae (alt. Compositae)

Subfamily:

Asteroideae

Tribe:

Eupatorieae

Nomen number:

459147

Place of publication:

Sida 21:902. 2004

Verified:

04/28/2009 ARS Systematic Botanists.

Accessions:

18 (18 active, 4 available) in National Plant Germplasm System. (Map it)

Other conspecific taxa

Eutrochium maculatum (L.) E. E. Lamont var. bruneri (A. Gray) E. E. Lamont (0 active accession[s])
Eutrochium maculatum (L.) E. E. Lamont var. foliosum (Fernald) E. E. Lamont (0 active accession[s])
Eutrochium maculatum (L.) E. E. Lamont var. maculatum (1 active accession[s])

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

Homotypic Synonym(s)
Eupatoriadelphus maculatus (L.) R. M. King & H. Rob.
Eupatoriadelphus maculatus (L.) R. M. King & H. Rob. var. maculatus

No images

Conservation Status

Reference(s)

FNA Editorial Committee. 1993-. Flora of North America.
Lamont, E. E. 2004. New combinations in Eutrochium (Asteraceae: Eupatorieae), an earlier name than Eupatoriadelphus. Sida 21:901-902.
Wofford, B. E. Database of Tennessee vascular plants (on-line resource).

Common names

Language	Name	Alternate name	note	seq	Citation
English	spotted joe-pyeweed			1	FNA Editorial Committee. 1993-. Flora of North America.
French	eupatoire maculée			2	FNA Editorial Committee. 1993-. Flora of North America.

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Northern America	Eastern Canada	Canada	New Brunswick		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Eastern Canada	Canada	Newfoundland and Labrador		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Eastern Canada	Canada	Nova Scotia		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Eastern Canada	Canada	Ontario		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Eastern Canada	Canada	Prince Edward Island		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Eastern Canada	Canada	Québec		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Eastern Canada	St. Pierre and Miquelon			FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	North-Central U.S.A.	United States	Illinois		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	North-Central U.S.A.	United States	Iowa		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	North-Central U.S.A.	United States	Kansas	n.e.	McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains.
1	Native	Northern America	North-Central U.S.A.	United States	Minnesota		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	North-Central U.S.A.	United States	Missouri	n.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	North-Central U.S.A.	United States	Nebraska		McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains.
1	Native	Northern America	North-Central U.S.A.	United States	North Dakota		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	North-Central U.S.A.	United States	South Dakota		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	North-Central U.S.A.	United States	Wisconsin		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Connecticut		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Indiana		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Maine		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Massachusetts		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Michigan		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	New Hampshire		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	New Jersey		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	New York		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Ohio		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Pennsylvania		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Vermont		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	West Virginia		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northwestern U.S.A.	United States	Colorado		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northwestern U.S.A.	United States	Idaho	s.e.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northwestern U.S.A.	United States	Washington	n.w.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northwestern U.S.A.	United States	Wyoming		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	South-Central U.S.A.	United States	New Mexico		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	Kentucky	n. (extirpated?)	Jones, R. L. 2005. Plant life of Kentucky: an illustrated guide to the vascular flora.
1	Native	Northern America	Southeastern U.S.A.	United States	North Carolina	w.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southeastern U.S.A.	United States	Tennessee		Wofford, B. E. Database of Tennessee vascular plants (on-line resource).
1	Native	Northern America	Southeastern U.S.A.	United States	Virginia	w.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southwestern U.S.A.	United States	Arizona	n.e.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southwestern U.S.A.	United States	Utah		Cronquist, A. et al. 1972-. Intermountain flora.
1	Native	Northern America	Western Canada	Canada	Alberta	n.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Western Canada	Canada	British Columbia	s.w.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Western Canada	Canada	Manitoba	s.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Western Canada	Canada	Saskatchewan		FNA Editorial Committee. 1993-. Flora of North America.

Native
Northern America

EASTERN CANADA: Canada [Québec, Nova Scotia, Ontario, Prince Edward Island, New Brunswick, Newfoundland and Labrador], St. Pierre and Miquelon
WESTERN CANADA: Canada [Saskatchewan, Alberta (n.), Manitoba (s.), British Columbia (s.w.)]
NORTHEASTERN U.S.A.: United States [Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Vermont, West Virginia]
NORTH-CENTRAL U.S.A.: United States [Illinois, Iowa, Kansas (n.e.), Minnesota, Missouri (n.), Nebraska, North Dakota, South Dakota, Wisconsin]
NORTHWESTERN U.S.A.: United States [Colorado, Idaho (s.e.), Washington (n.w.), Wyoming]
SOUTHEASTERN U.S.A.: United States [Kentucky (n. (extirpated?)), North Carolina (w.), Tennessee, Virginia (w.)]
SOUTH-CENTRAL U.S.A.: United States [New Mexico]
SOUTHWESTERN U.S.A.: United States [Arizona (n.e.), Utah]

Reference(s)

Cronquist, A. et al. 1972-. Intermountain flora.
FNA Editorial Committee. 1993-. Flora of North America.
Jones, R. L. 2005. Plant life of Kentucky: an illustrated guide to the vascular flora.
McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains.
Wofford, B. E. Database of Tennessee vascular plants (on-line resource).

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=459147. Accessed 13 May 2026.