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
Integrated Taxonomic Information System (ITIS)
view in classification
BOLDS resource for species-level taxa Genus
NMNH Botany Elevation Data Genus
Botany resource Genus
EOL Group on Flickr Genus
EOL Group on Flickr
EOL Group on Flickr Genus
view in classification
FloraOfZimbabwe Genus
Global Biotic Interactions Genus
Global Biotic Interactions Genus
INBio resource Genus
INBio resource Genus Import Genus Import
BOLDS images II Genus
NCBI Taxonomy
view in classification
Medicinal Plants of the Guianas Genus
NMNH Botany Elevation Data (Summarized) Genus
NMNH Botany Plant Habit Data Genus
NatureServe resource Genus
Smithsonian type specimen data Genus
BOLDS resource for higher-level taxa
Taxonomic Hierarchy of COL-China 2012
view in classification
Tropicos resource Genus
USDA PLANTS Structured Data
  • Bixa
USDA Plants Genus
USDA Plants
Wikimedia Commons Genus
Wikipedia Genus
eFloras Genus
iNaturalist Images Genus


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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