Taxon: Ambrosia grayi (A. Nelson) Shinners

• Check PlantSearch database of Botanic Gardens Conservation International for possible non-NPGS germplasm.

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:

CO°, CO(as Franseria tomentosa)°, KS*°, KS(as Franseria tomentosa)*°.

ªAquatic.

*Terrestrial.

°In seed.

Link to noxious weed information from

Common names:

• bur ragweed   (Source: F GPlains ) – English
  
• woolly-leaf bur-sage   (Source: AH 505 ) – English
  

Economic importance:

• Weed: potential seed contaminant   (fide State Noxweed Seed)
  

More:

View ethnobotanical data from Moerman's Native American Ethnobotany Database

Distributional range:

• NORTHERN AMERICA (Check conservation status in U.S. & Canada in NatureServe Explorer database)
  North-Central U.S.A.: United States - Kansas, Nebraska [s.], Oklahoma
  Northwestern U.S.A.: United States - Colorado [e.]
  South-Central U.S.A.: United States - Texas

References:

• Correll, D. S. & M. C. Johnston. 1970. Manual of the vascular plants of Texas.
• FNA Editorial Committee. 1993–. Flora of North America.
• Groth, D. 2005. pers. comm. [re. Brazilian common names].
• Harrington, H. 1954. Manual of the plants of Colorado. [= Franseria discolor Nutt.].
• McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains.
• McGregor, R. L. et al. 1976. Checklist of Kansas vascular plants.
• Payne, W. W. 1964. A re-evaluation of the genus Ambrosia (Compositae). J. Arnold Arbor. 45:424.
• 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.
• Terrell, E. E. et al. 1986. Agric. Handb. no. 505.

More:

Search AGRICOLA article citation database for citations referencing Ambrosia grayi.

Search NCBI's Entrez search engine for PubMed citations referencing Ambrosia grayi.

Search Biodiversity Heritage Library for historical publications referencing Ambrosia grayi.

Synonyms:

• (=) Franseria tomentosa A. Gray
  
• (≡) Gaertneria grayi A. Nelson (basionym)
  

Check other web resources for Ambrosia grayi (A. Nelson) Shinners:

• Flora of North America: Collaborative Floristic Effort of North American Botanists
• PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
• BONAP: North American Plant Atlas of the Biota of North America Program
• TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
• ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
• AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
• Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.

Images:

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

More:

• Check PlantSystematics.org for additional images
• 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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