Sometimes taxonomists create new names for groups that already have a name. They may do this because they are unaware of the original name, or they may think the organism before them belongs to a different group when in fact it does not. If two or more names are found to apply to the same group, they are considered synonyms. In most cases, the first name takes priority and is considered to be the valid or accepted name. However, there can be exceptions, and it's not always easy to determine which of a series of synonyms should be considered valid or accepted. Here we list the synonyms provided to EOL by our classification partners. We also include other versions of the name that most likely refer to the same group, for example, misspellings in the literature or different variations of the authorship associated with the name.

Preferred marks the preferred name from each source.

BioLib.cz Import

Name Relationship
Yucca faxoniana (Trel.) Sarg. Preferred
Samuela faxoniana Trel. Synonym

BioLib.cz Import

Name Relationship
Yucca torreyi Shafer Preferred
Yucca baccata var. macrocarpa Torr.
Yucca crassifolia Engelm.

Tropicos resource

Name Relationship
Yucca faxoniana Sarg. Preferred
Samuela faxonia Trel.
Yucca australis (Engelm.) Trel.
Yucca macrocarpa (Torr.) Coville

Tropicos resource

Name Relationship
Yucca torreyi Shafer Preferred
Yucca baccata var. macrocarpa Torr.
Yucca torreyi fo. parviflora McKelvey

Species 2000 & ITIS Catalogue of Life: April 2013

Name Relationship
Yucca faxoniana Sarg. Preferred
Yucca macrocarpa (Torr.) Coville
Yucca torreyi Shafer
Yucca australis Trel.
Samuela faxoniana Trel.
Sarcoyucca australis (Trel.) Linding.
Sarcoyucca macrocarpa (Torr.) Linding.
Yucca baccata var. macrocarpa
Yucca australis var. valida
Yucca torreyi f. parviflora

NCBI Taxonomy

Name Relationship
Yucca australis Preferred
Yucca australis Trel.

Integrated Taxonomic Information System (ITIS)

Name Relationship
Yucca faxoniana Sarg. Preferred
Yucca carnerosana auct. non (Trel.) McKelvey Misapplied
Samuela carnerosana auct. non Trel.
Samuela faxoniana Trel.

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