Taxon: Taeniatherum caput-medusae (L.) Nevski subsp. caput-medusae

A declared aquatic or terrestrial noxious weed and/or noxious-weed seed in these U.S. states (see state noxious weed lists), with links to state information or web documents:

ID°, ID(as Elymus caput-medusae)°, OR(as Elymus caput-medusae)°, WA°.

ªAquatic.

*Terrestrial.

°In seed.

Link to noxious weed information from

See other conspecific taxa:

• Taeniatherum caput-medusae (7 accessions)
• Taeniatherum caput-medusae subsp. asperum (5 accessions)
• Taeniatherum caput-medusae subsp. crinitum (31 accessions)

Common names:

• medusa's-head   (Source: Websters Dict )
  
• medusahead-rye   (Source: State Noxweed Seed )
  

Economic importance:

• Weed   (fide State Noxweed Seed)
  

More:

View ethnobotanical data from Moerman's Native American Ethnobotany Database

Distributional range:

Native: (links to other web resources are provided for some distributions)

• AFRICA
  Northern Africa: Algeria [n.]; Morocco
• EUROPE
  Southeastern Europe: Italy [s.]
  Southwestern Europe: France [s.]; Portugal; Spain
• NORTHERN AMERICA
  United States [w.]

References:

• FNA Editorial Committee. 1993–. Flora of North America. (F NAmer)
• Frederiksen, S. 1986. Revision of Taeniatherum (Poaceae). Nordic J. Bot. 6:393–394.
• Humphries, C. J. 1978. Flora europaea. Notulae systematicae.: no. 20. Variation in Taeniatherum caput-medusae (L.) Nevski. Bot. J. Linn. Soc. 76:340–344.
• Melderis, A. 1984. New taxa and combinations in Gramineae tribe Triticeae from Turkey. Notes Roy. Bot. Gard. Edinburgh 42:81.
• Seed Regulatory and Testing Branch, Agricultural Marketing Service, U.S.D.A. 1999. State noxious-weed seed requirements recognized in the administration of the Federal Seed Act. (State Noxweed Seed)
• Tzvelev, N. N. 1976. Zlaki SSSR. (Grass USSR)
• Webster's third new international dictionary. (Websters Dict)

Synonyms:

• (≡) Elymus caput-medusae L. (basionym)
  (previously associated with 8 accessions)

Check other databases for Taeniatherum caput-medusae (L.) Nevski subsp. caput-medusae:

• PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
• TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
• CNWG: Catalogue of New World Grasses Searchable Database
• Grass Manual on the Web: Manual of Grasses for North America North of Mexico

Images:

• Florets: U.S. National Seed Herbarium image
• Florets: Seed ID Workshop image, from Department of Horticulture and Crop Science, Ohio State University

More:

• Images Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

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| USDA | ARS | GRIN | NPGS | New Search |

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Cite as:
USDA, ARS, National Genetic Resources Program.
Germplasm Resources Information Network - (GRIN) [Online Database].
National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?317718 (24 November 2009)

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