Taxon: Toxicodendron rydbergii (Small ex Rydb.) Greene

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

Common names:

• Rydberg's poison-ivy   (Source: Rhodora 73:390. 1971) – English
  

Economic importance:

• Vertebrate poisons: mammals   (fide Lampe & McCann & Moldenke, as Rhus rydbergii; Kingsbury, as R. radicans var. rydbergii)
  

More:

View toxicology references for Toxicodendron rydbergii from FDA Poisonous Plant Database

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)
  Eastern Canada: Canada - New Brunswick, Nova Scotia, Ontario [s.], Prince Edward Island, Quebec [s.]
  Western Canada: Canada - Alberta [s.], British Columbia [s.e.], Manitoba [s.], Saskatchewan [s.]
  Northeastern U.S.A.: United States - Indiana [n.], Maine, Massachusetts, Michigan, New Hampshire, New York, Ohio [n.], Pennsylvania, Vermont, West Virginia
  North-Central U.S.A.: United States - Illinois [n.], Iowa, Kansas, Minnesota, 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 - Virginia [w.]
  South-Central U.S.A.: United States - New Mexico, Texas
  Southwestern U.S.A.: United States - Arizona, Utah

References:

• Allred, Kelly W. 2008. Flora Neomexicana I: The vascular plants of New Mexico, an annotated checklist to the names of vascular plants with synonymy and bibliography.
• Gillis, W. T. 1971. The systematics and ecology of poison-ivy and the poison-oaks (Toxicodendron, Anacardiaceae). Rhodora 73:38.
• Lampe, K. F. & M. A. McCann. 1985. AMA handbook of poisonous and injurious plants. [poisonous].

More:

Search AGRICOLA article citation database for citations referencing Toxicodendron rydbergii.

Search NCBI's Entrez search engine for PubMed citations referencing Toxicodendron rydbergii.

Search Biodiversity Heritage Library for historical publications referencing Toxicodendron rydbergii.

Synonyms:

• (≡) Rhus radicans var. rydbergii (Small ex Rydb.) Rehder
  
• (≡) Rhus rydbergii Small ex Rydb. (basionym)
  

Check other web resources for Toxicodendron rydbergii (Small ex Rydb.) Greene:

• 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.

Check other web resources for images:

• PlantSystematics.org
• 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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