segregate (taxonomy)

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In taxonomy, a segregate, or a segregate taxon is created when a taxon is split off from another taxon. This other taxon will be better known, usually bigger, and will continue to exist, even after the segregate taxon has been split off. A segregate will be either new or ephemeral: there is a tendency for taxonomists to disagree on segregates, and later workers often reunite a segregate with the 'mother' taxon.{{Cite web |date=2010-06-26 |title=How to separate taxonomy terms from two different vocabularies in $term array of node-custom_content_type.tpl.php |url=https://www.drupal.org/forum/support/post-installation/2010-06-26/how-to-separate-taxonomy-terms-from-two-different |access-date=2024-10-13 |website=Drupal.org |language=en}}

If a segregate is generally accepted as a 'good' taxon it ceases to be a segregate. Thus, this is a way of indicating change in the taxonomic status. It should not be confused with, for example, the subdivision of a genus into subgenera.{{Cite web |title=Split the taxonomy column |url=https://www.biostars.org/p/425048/ |access-date=2024-10-13 |website=www.biostars.org}}

:For example, the genus Alsobia is a segregate from the genus Episcia; The genera Filipendula and Aruncus are segregates from the genus Spiraea.