Scientists aim to describe a single 'tree of life' that reflects the evolutionary relationships of living things. However, evolutionary relationships are a matter of ongoing discovery, and there are different opinions about how living things should be grouped and named. EOL reflects these differences by supporting several different scientific 'classifications'. Some species have been named more than once. Such duplicates are listed under synonyms. EOL also provides support for common names which may vary across regions as well as languages.

Preferred marks the preferred classification for this taxon.

Recognized By Rank Classification
Species 2000 & ITIS Catalogue of Life: April 2013
view in classification
IABIN resource
BibAlex LifeDesk
  • Amaranthus retroflexus L.
BioImages resource
NMNH Botany Elevation Data Species
Botany resource
  • Amaranthus retroflexus
Chen and Moles, 2015
DiscoverLife map resource
  • Amaranthus retroflexus
EOL Group on Flickr
view in classification
FEIS Invasiveness (structured data)
  • Amaranthus retroflexus
  • Amaranthus retroflexus
Fire Effects Information System (FEIS) - Plants
Flora Helvetica - first 1000
  • Amaranthus retroflexus
GBIF Elevation Data Species
Global Biotic Interactions Species
Global Compendium of Weeds Species
  • Amaranthus retroflexus
Go Botany: New England Wild Flower Society
BOLDS resource for species-level taxa
Illinois Wildflowers Import
Integrated Taxonomic Information System (ITIS)
view in classification
Inventaire National du Patrimoine Naturel Species
NCBI Taxonomy
view in classification
National Wetland Plant List 2013
NatureServe resource Species
Flora Helvetica
Plants of Switzerland by Flora Helvetica
  • Amaranthus retroflexus
Marie Studer
  • Amaranthus retroflexus
Seacoast Science Center All Taxa List
  • Amaranthus retroflexus
BOLDS images II Species
Synonymie-Index der Schweizer Flora und der angrenzenden Gebiete (SISF). outlinks
Taxonomic Hierarchy of COL-China 2012
view in classification
USDA PLANTS Structured Data
  • Amaranthus retroflexus
USDA Plants
Wikimedia Commons
iNaturalist Images Species
iSpot links Species


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