Taxon: Lepidium densiflorum Schrad.

Summary

Genus:

Lepidium

Family:

Brassicaceae (alt. Cruciferae)

Tribe:

Lepidieae

Nomen number:

316722

Place of publication:

Index sem. hort. acad. gotting. 1832:4. 1832

Verified:

10/15/2010 ARS Systematic Botanists.

Accessions:

7 (3 active, 2 available) in National Plant Germplasm System. (Map it)

Other conspecific taxa

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

Autonym(s)
Lepidium densiflorum Schrad. var. densiflorum

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

Links

Seeds or fruits – Seed ID Workshop image, from Department of Horticulture and Crop Science, Ohio State University

Conservation Status

Reference(s)

University of Georgia Center for Invasive Species and Ecosystem Health
Al-Shehbaz, I. A. 2010. A synopsis of the South American Lepidium (Brassicaceae). Darwiniana 48:141-167.
Chester, E. W. et al. 1993-1997. Atlas of Tennessee vascular plants.
CIBA-GEIGY, Basel, Switzerland. Documenta CIBA-GEIGY (Grass weeds 1. 1980, 2. 1981; Monocot weeds 3. 1982; Dicot weeds 1. 1988) Note: four books on weeds worldwide in scope
Correll, D. S. & M. C. Johnston. 1970. Manual of the vascular plants of Texas
Cronquist, A. et al. 1972-. Intermountain flora.
Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 109-110.
Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource).
FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
Gleason, H. A. & A. Cronquist. 1963. Manual of vascular plants of northeastern United States and adjacent Canada.
Gleason, H. A. & A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2
Hewson, H. J. 1981. The genus Lepidium L. (Brassicaceae) in Australia. Brunonia 4:303.
Instituto de Botánica Darwinion. 2008. Flora del Conosur. Catálogo de las plantas vasculares.
Iwatsuki, K. et al. 1993-. Flora of Japan.
Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
Magee, D. W. & H. E. Ahles. 1999. Flora of the Northeast. A manual of the vascular flora of New England and adjacent New York.
Martin, W. C. & C. R. Hutchins. 1980. A flora of New Mexico.
McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains.
McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
Mitchell, R. S., ed. 1986. A checklist of New York state plants. New York State Mus. Bull. 458
Mohlenbrock, R. H. 1975. Guide to the vascular flora of Illinois.
Porcher, M. H. et al. Searchable World Wide Web Multilingual Multiscript Plant Name Database (MMPND) (on-line resource).
Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
Steyermark, J. A. 1977. Flora of Missouri.
Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
Welsh, S. L. et al. 1987. A Utah flora. Great Basin Naturalist Mem. 9.
Wherry, E. T. et al. 1979. Atlas of the flora of Pennsylvania.
Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
Wunderlin, R. P. 1998. Guide to the vascular plants of Florida
1961. Webster's third new international dictionary.
2018. Mid-Atlantic invasive plant species (on-line resource)

Common names

Language	Name	note	seq	Citation
English	prairie peppergrass		1	1961. Webster's third new international dictionary.
English	prairie pepperweed		1	Gleason, H. A. & A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2
English	prairie pepperwort		1	Cronquist, A. et al. 1972-. Intermountain flora.
English (Canada)	common pepper-grass	Agriculture & Agri-Food Canada official name	2	Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 109-110.
French (Canada)	lépidie densiflore	Agriculture & Agroalimentaire Canada nom officiel	2	Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 109-110.

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. Note: does not recognize varieties or subspecies
1	Native	Northern America	Eastern Canada	Canada	Newfoundland and Labrador		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Eastern Canada	Canada	Nova Scotia		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Eastern Canada	Canada	Ontario		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Eastern Canada	Canada	Prince Edward Island		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Eastern Canada	Canada	Québec		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	North-Central U.S.A.	United States	Illinois		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	North-Central U.S.A.	United States	Iowa		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	North-Central U.S.A.	United States	Kansas		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	North-Central U.S.A.	United States	Minnesota		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	North-Central U.S.A.	United States	Missouri		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	North-Central U.S.A.	United States	Nebraska		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	North-Central U.S.A.	United States	North Dakota		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	North-Central U.S.A.	United States	Oklahoma		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	North-Central U.S.A.	United States	South Dakota		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	North-Central U.S.A.	United States	Wisconsin		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	Connecticut		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	Indiana		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	Maine		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	Massachusetts		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	Michigan		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	New Hampshire		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	New Jersey		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	New York		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	Ohio		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	Pennsylvania		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	Rhode Island		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	Vermont		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northeastern U.S.A.	United States	West Virginia		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northern Mexico	Mexico	Chihuahua		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northern Mexico	Mexico	Nuevo León		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northwestern U.S.A.	United States	Colorado		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northwestern U.S.A.	United States	Idaho		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northwestern U.S.A.	United States	Montana		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northwestern U.S.A.	United States	Oregon		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northwestern U.S.A.	United States	Washington		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Northwestern U.S.A.	United States	Wyoming		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	South-Central U.S.A.	United States	New Mexico		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	South-Central U.S.A.	United States	Texas		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	Alabama		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	Arkansas		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	Delaware		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	District of Columbia		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	Florida		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	Georgia		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	Kentucky		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	Louisiana		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	Maryland		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	Mississippi		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	North Carolina		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	South Carolina		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	Tennessee		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southeastern U.S.A.	United States	Virginia		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southwestern U.S.A.	United States	Arizona		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southwestern U.S.A.	United States	California		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southwestern U.S.A.	United States	Nevada		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Southwestern U.S.A.	United States	Utah		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Subarctic America	Canada	Northwest Territories		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Subarctic America	Canada	Yukon		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Subarctic America	United States	Alaska		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Western Canada	Canada	Alberta		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Western Canada	Canada	British Columbia		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Western Canada	Canada	Manitoba		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
1	Native	Northern America	Western Canada	Canada	Saskatchewan		FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
4	Naturalized	Asia-Temperate	China	China			Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
4	Naturalized	Asia-Temperate	Eastern Asia	Japan	Honshu		Iwatsuki, K. et al. 1993-. Flora of Japan.
4	Naturalized	Asia-Temperate	Eastern Asia	Korea			Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
4	Naturalized	Asia-Temperate	Middle Asia	Tajikistan			Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
4	Naturalized	Asia-Temperate	Mongolia	Mongolia			Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
4	Naturalized	Asia-Temperate	Siberia	Russian Federation	Krasnoyarsk		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
4	Naturalized	Asia-Temperate	Siberia	Russian Federation-Eastern Siberia	Eastern Siberia		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
4	Naturalized	Asia-Temperate	Siberia	Russian Federation-Western Siberia	Western Siberia		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
4	Naturalized	Europe	Eastern Europe	Belarus			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Eastern Europe	Estonia			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Eastern Europe	Latvia			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Eastern Europe	Lithuania			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Eastern Europe	Russian Federation-European part	European part		Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Eastern Europe	Ukraine			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Austria			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Belgium			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Czech Republic			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Germany			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Hungary			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Netherlands			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Poland			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Slovakia			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Middle Europe	Switzerland			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Northern Europe	Finland			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Northern Europe	Norway			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Northern Europe	Sweden			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Southeastern Europe	Italy		n.	Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Southeastern Europe	Romania			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Southeastern Europe	Slovenia			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Europe	Southwestern Europe	France			Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
4	Naturalized	Southern America	Southern South America	Argentina	La Pampa		Instituto de Botánica Darwinion. 2008. Flora del Conosur. Catálogo de las plantas vasculares.
4	Naturalized	Southern America	Southern South America	Argentina	San Luis		Instituto de Botánica Darwinion. 2008. Flora del Conosur. Catálogo de las plantas vasculares.
6	Other					exact native range obscure

Native
Northern America

SUBARCTIC AMERICA: Canada [Northwest Territories, Yukon], United States [Alaska]
EASTERN CANADA: Canada [Québec, Nova Scotia, Ontario, Prince Edward Island, New Brunswick, Newfoundland and Labrador]
WESTERN CANADA: Canada [Saskatchewan, Alberta, Manitoba, British Columbia]
NORTHEASTERN U.S.A.: United States [Connecticut, Indiana, Maine, 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, Idaho, Montana, Oregon, Washington, Wyoming]
SOUTHEASTERN U.S.A.: United States [Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, District of Columbia]
SOUTH-CENTRAL U.S.A.: United States [New Mexico, Texas]
SOUTHWESTERN U.S.A.: United States [Arizona, California, Nevada, Utah]
NORTHERN MEXICO: Mexico [Chihuahua, Nuevo León]

Naturalized
Asia-Temperate

SIBERIA: Russian Federation-Western Siberia [Western Siberia], Russian Federation-Eastern Siberia [Eastern Siberia], Russian Federation [Krasnoyarsk]
MIDDLE ASIA: Tajikistan
MONGOLIA: Mongolia
CHINA: China
EASTERN ASIA: Korea, Japan [Honshu]

Europe

NORTHERN EUROPE: Finland, Norway, Sweden
MIDDLE EUROPE: Austria, Belgium, Switzerland, Czech Republic, Germany, Hungary, Netherlands, Poland, Slovakia
EASTERN EUROPE: Russian Federation-European part [European part], Belarus, Estonia, Lithuania, Latvia, Ukraine
SOUTHEASTERN EUROPE: Italy (n.), Romania, Slovenia
SOUTHWESTERN EUROPE: France

Southern America

SOUTHERN SOUTH AMERICA: Argentina [La Pampa, San Luis]

Other (exact native range obscure)

Reference(s)

FNA Editorial Committee. 1993-. Flora of North America. Note: does not recognize varieties or subspecies
Instituto de Botánica Darwinion. 2008. Flora del Conosur. Catálogo de las plantas vasculares.
Iwatsuki, K. et al. 1993-. Flora of Japan.
Jalas, J. & J. Suominen. 1972-. Atlas florae europaeae.
Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).

Economic Uses

Usage	Type	Note	Reference
Weed	seed contaminant	potential	CIBA-GEIGY, Basel, Switzerland. Documenta CIBA-GEIGY (Grass weeds 1. 1980, 2. 1981; Monocot weeds 3. 1982; Dicot weeds 1. 1988) Note: four books on weeds worldwide in scope

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=316722. Accessed 12 May 2026.