Brassica juncea - (L.) Czern.
Chinese Mustard
Other English Common Names: Brown Mustard, India Mustard, Leaf Mustard
Other Common Names: brown mustard
Taxonomic Status: Accepted
Related ITIS Name(s): Brassica juncea (L.) Czern. (TSN 23059)
French Common Names: moutarde d'Inde
Unique Identifier: ELEMENT_GLOBAL.2.156514
Element Code: PDBRA0C050
Informal Taxonomy: Plants, Vascular - Flowering Plants - Mustard Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Capparales Brassicaceae Brassica
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Concept Reference
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Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Brassica juncea
Conservation Status
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NatureServe Status

Global Status: GNR
Global Status Last Changed: 22Mar1994
Rounded Global Status: GNR - Not Yet Ranked
Nation: United States
National Status: NNA
Nation: Canada
National Status: NNA (23Feb2012)

U.S. & Canada State/Province Status
United States Alabama (SNA), Alaska (SNA), Arizona (SNA), Arkansas (SNA), California (SNA), Colorado (SNA), Connecticut (SNA), Delaware (SNA), District of Columbia (SNA), Florida (SNA), Georgia (SNR), Hawaii (SNA), Idaho (SNA), Illinois (SNA), Indiana (SNA), Iowa (SNA), Kansas (SNA), Kentucky (SNA), Louisiana (SNA), Maine (SNA), Maryland (SNA), Massachusetts (SNR), Michigan (SNA), Minnesota (SNA), Mississippi (SNA), Missouri (SNA), Montana (SNA), Nebraska (SNA), Nevada (SNA), New Hampshire (SNA), New Jersey (SNA), New Mexico (SNA), New York (SNA), North Carolina (SNA), North Dakota (SNA), Ohio (SNA), Oklahoma (SNA), Oregon (SNA), Pennsylvania (SNA), Rhode Island (SNA), South Carolina (SNA), South Dakota (SNA), Tennessee (SNA), Texas (SNA), Utah (SNA), Vermont (SNA), Virginia (SNA), Washington (SNA), West Virginia (SNA), Wisconsin (SNA), Wyoming (SNA)
Canada Alberta (SNA), British Columbia (SNA), Manitoba (SNA), New Brunswick (SNA), Newfoundland Island (SNA), Northwest Territories (SNA), Nova Scotia (SNA), Ontario (SNA), Prince Edward Island (SNA), Quebec (SNA), Saskatchewan (SNA)

Other Statuses

NatureServe Global Conservation Status Factors

Other NatureServe Conservation Status Information

Distribution
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U.S. States and Canadian Provinces
Color legend for Distribution Map
NOTE: The distribution shown may be incomplete, particularly for some rapidly spreading exotic species.

U.S. & Canada State/Province Distribution
United States AKexotic, ALexotic, ARexotic, AZexotic, CAexotic, COexotic, CTexotic, DCexotic, DEexotic, FLexotic, GA, HIexotic, IAexotic, IDexotic, ILexotic, INexotic, KSexotic, KYexotic, LAexotic, MA, MDexotic, MEexotic, MIexotic, MNexotic, MOexotic, MSexotic, MTexotic, NCexotic, NDexotic, NEexotic, NHexotic, NJexotic, NMexotic, NVexotic, NYexotic, OHexotic, OKexotic, ORexotic, PAexotic, RIexotic, SCexotic, SDexotic, TNexotic, TXexotic, UTexotic, VAexotic, VTexotic, WAexotic, WIexotic, WVexotic, WYexotic
Canada ABexotic, BCexotic, MBexotic, NBexotic, NFexotic, NSexotic, NTexotic, ONexotic, PEexotic, QCexotic, SKexotic

Range Map
No map available.

Ecology & Life History Not yet assessed
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Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank)
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Disclaimer: While I-Rank information is available over NatureServe Explorer, NatureServe is not actively developing or maintaining these data. Species with I-RANKs do not represent a random sample of species exotic in the United States; available assessments may be biased toward those species with higher-than-average impact.

I-Rank: Insignificant
Rounded I-Rank: Insignificant
I-Rank Reasons Summary: Brassica juncea is a widespread exotic species known from every state in the U.S., including Hawaii, the Virgin Islands and Puerto Rico (Kartesz 1999). This species is a crop plant grown as a vegetable or for oil (Voss 1985). It is not clear, however, that it has invaded natural habitats or conservation areas. It has escaped to waste places, fields, road sides and other disturbed areas (Rollins 1993). The Plant Conservation Alliance alien list notes that it occurs in a natural area in Lake Mead National Park, Nevada (2003). The park website does not mention this species on it plant list. This species is a noxious week in Michigan, Oklahoma and Massachusetts (Kartesz 1999), however, there isn't evidence to suggest that this species spreads into conservation areas. No reports to that effect were found. Also, the Michigan Flora says "[It is]much less common than often supposed (or misidentified!), perhaps declining as a result of stricter control of agricultural seed quality (reducing contaminants) and improved cultivation methods (Voss 1985).
Subrank I - Ecological Impact: Unknown
Subrank II - Current Distribution/Abundance: Unknown
Subrank III - Trend in Distribution/Abundance: Unknown
Subrank IV - Management Difficulty: Unknown
I-Rank Review Date: 18Feb2004
Evaluator: Oliver, L.
Native anywhere in the U.S?
Native Range: This species is native to Eurasia (Rollins 1993).

Download "An Invasive Species Assessment Protocol: Evaluating Non-Native Plants for their Impact on Biodiversity". (PDF, 1.03MB)
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Screening Questions

S-1. Established outside cultivation as a non-native? YES
Comments: Thi species is known from every state in the US (Kartesz 1999).

S-2. Present in conservation areas or other native species habitat? No - Irank insignificant
Comments: Brassica juncea is a widespread exotic species known from every state in the US, including Hawaii, the Virgin Islands and Puerto Rico (Kartesz 1999). This species is a crop plant grown as a vegetable or for oil (Voss 1985). It is not clear, however, that it has invaded natural habitats or conservation areas. It has escaped to waste places, fields, road sides and other disturbed areas (Rollins 1993). The Plant Conservation Alliance alien list notes that it occurs in a natural area in Lake Mead National Park, Nevada (2003). The park website does not mention this species on it plant list. This species is a noxious week in Michigan, Oklahoma and Massachusetts (Kartesz 1999), however, there isn't evidence to suggest that this species spreads into conservation areas. No reports to that effect were found. Also, the Michigan Flora says "[It is]much less common than often supposed (or misidentified!), perhaps declining as a result of sticter control of agricultural seed quality (reducing contaiminants) and improved cultivation methods (Voss 1985).

Subrank I - Ecological Impact: Unknown

Subrank II. Current Distribution and Abundance: Unknown

Subrank III. Trend in Distribution and Abundance: Unknown

Subrank IV. General Management Difficulty: Unknown
Authors/Contributors
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Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
Help
  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

  • Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.

  • Meades, S.J. & Hay, S.G; Brouillet, L. 2000. Annotated Checklist of Vascular Plants of Newfoundland and Labrador. Memorial University Botanical Gardens, St John's NF. 237pp.

  • Plant Conservation Alliance. 2003. Alien plant invaders of natural areas. Last updated 12 August 2003. Available: http://www.nps.gov/plants/alien/list/all.htm. (Accessed 2003).

  • Rollins, R.C. 1993a. The Cruciferae of continental North America: Systematics of the mustard family from the Arctic to Panama. Stanford Univ. Press, Stanford, California. 976 pp.

  • Voss, E.G. 1985. Michigan flora. Part II. Dicotyledons. Cranbrook Institute of Science and University of Michigan Herbarium. Ann Arbor, Michigan. 1212 pp.

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