Taxon: Solanum emulans Raf.

Summary

Genus:

Solanum

Subgenus:

Solanum

Section:

Solanum

Family:

Solanaceae

Subfamily:

Solanoideae

Tribe:

Solaneae

Nomen number:

488372

Place of publication:

Autik. bot. 107. 1840

Verified:

03/04/2020 ARS Systematic Botanists.

Accessions:

1 (1 active, 0 available) in National Plant Germplasm System. (Map it)

Other conspecific taxa

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

Invalid Designation(s)
Solanum americanum auct.
Solanum ptychanthum auct.

No images

Conservation Status

Reference(s)

Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.

Common names

Language	Name	note	seq	Citation
English	black nightshade	as Solanum ptychanthum	1	McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains. Note: lists as "ptycanthum" as Solanum ptychanthum
English	eastern black nightshade	as Solanum ptychanthum	1	Seed Regulatory and Testing Division, Agricultural Marketing Service, U.S.D.A. State noxious-weed seed requirements recognized in the administration of the Federal Seed Act (updated annually). Note: as Solanum ptychanthum
English (Canada)	eastern black nightshade	Agriculture & Agri-Food Canada official name, as Solanum ptychanthum	2	Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:64.
French (Canada)	morelle noire de l’Est	Agriculture & Agroalimentaire Canada nom officiel, as Solanum ptychanthum	2	Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:64.

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Northern America	Eastern Canada	Canada	Ontario	s.	Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Eastern Canada	Canada	Québec	s.	Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	North-Central U.S.A.	United States	Illinois		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	North-Central U.S.A.	United States	Iowa		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	North-Central U.S.A.	United States	Kansas		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	North-Central U.S.A.	United States	Minnesota		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	North-Central U.S.A.	United States	Missouri		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	North-Central U.S.A.	United States	Nebraska		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	North-Central U.S.A.	United States	North Dakota		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	North-Central U.S.A.	United States	Oklahoma		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	North-Central U.S.A.	United States	South Dakota		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	North-Central U.S.A.	United States	Wisconsin		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	Connecticut		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	Indiana		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	Maine	s.	Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	Massachusetts		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	Michigan		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	New Hampshire		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	New Jersey		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	New York		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	Ohio		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	Pennsylvania		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	Rhode Island		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	Vermont		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northeastern U.S.A.	United States	West Virginia		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northwestern U.S.A.	United States	Colorado	e.	Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Northwestern U.S.A.	United States	Montana		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	South-Central U.S.A.	United States	Texas		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	Alabama		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	Arkansas		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	Delaware		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	Florida	n.	Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	Georgia		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	Kentucky		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	Louisiana		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	Maryland		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	Mississippi		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	North Carolina		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	South Carolina		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	Tennessee		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Southeastern U.S.A.	United States	Virginia		Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Western Canada	Canada	Manitoba	s.	Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
1	Native	Northern America	Western Canada	Canada	Saskatchewan	s.	Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.
4	Naturalized					natzd. elsewhere	Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.

Native
Northern America

EASTERN CANADA: Canada [Québec (s.), Ontario (s.)]
WESTERN CANADA: Canada [Saskatchewan (s.), Manitoba (s.)]
NORTHEASTERN U.S.A.: United States [Connecticut, Indiana, Maine (s.), Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia]
NORTH-CENTRAL U.S.A.: United States [Illinois, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, Oklahoma, South Dakota, Wisconsin]
NORTHWESTERN U.S.A.: United States [Colorado (e.), Montana]
SOUTHEASTERN U.S.A.: United States [Alabama, Arkansas, Delaware, Florida (n.), Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia]
SOUTH-CENTRAL U.S.A.: United States [Texas]

Naturalized (natzd. elsewhere)

Reference(s)

Knapp, S. et al. 2019. A revision of the morelloid clade of Solanum L. (Solanaceae) in North and Central America and the Caribbean. PhytoKeys 123:59-64.

Economic Uses

Usage	Type	Note	Reference
Vertebrate poisons	mammals	as Solanum americanum	Kingsbury, J. M. 1964. Poisonous plants of the United States and Canada.
Weed	seed contaminant	potential; as Solanum ptychanthum	Rogers, B. S. & A. G. Ogg, Jr. 1981. Biology of weeds in the Solanum nigrum complex in North America. Agric. Rev. Manuals U.S.D.A. ARM-W-23:1-30. Note: lists as "ptycanthum" as Solanum ptychanthum

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=488372. Accessed 17 April 2026.