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.

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Preferred marks the preferred classification for this taxon.

Recognized By Rank Classification
Species 2000 & ITIS Catalogue of Life: April 2013
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Genus
BioLib.cz Import
BHL: BioDivLibrary's photostream Genus
BOLDS resource for higher-level taxa
BOLDS images II Genus
BOLDS resource for species-level taxa Genus
BioImages resource
Botany resource Genus
CalPhotos
  • Helianthus
EOL Group on Flickr Genus
EOL Group on Flickr Genus
EOL Group on Flickr Genus
EOL Group on Flickr Genus
EOL Group on Flickr Genus
IRMNG
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Genus
Finding Species Genus
FloraOfZimbabwe Genus
FloraOfZimbabwe
Global Biotic Interactions Genus
Global Biotic Interactions Genus
Global Biotic Interactions Genus
Global Compendium of Weeds Species
  • Helianthus
Herbarium Specimen Images (E) Genus
IABIN resource Genus
Illinois Wildflowers Genus
BioLib.cz Import Genus
AskNature
Integrated Taxonomic Information System (ITIS)
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Genus
Lily Database Genus
NCBI Taxonomy
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Genus
NMNH Botany Elevation Data: Ferns & Flowering Plants Genus
NatureServe resource Genus
OBIS Environmental Information
  • Helianthus
OBIS depth range resource Genus
One-time import of archived NBII images Genus
SPIRE resource
  • Helianthus
India Biodiversity Portal Species Data Genus
Taxonomic Hierarchy of COL-China 2012
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Genus
Tropicos resource Genus
US Fish and Wildlife Service Endangered Species Program resource Genus
USDA PLANTS Structured Data
  • Helianthus
USDA Plants
USDA Plants Genus
World Register of Marine Species (WoRMS)
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Genus
Wikimedia Commons
Wikimedia Commons Genus
Wikipedia Genus
Wikipedia Genus
Wikipedia
Wikipedia Genus
eFloras Genus
iNaturalist Images Genus

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

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