قالب:Is reg
Usage
Input:  |1=Taxon name
Output:
- If Taxon is a regnum (or equivalent higher category), 
[[{{{1}}}]] - Else: Null.
 
Intended use: Call repeatedly for each taxon in a taxobox (using {{Get regnum()}}). Because a null string is returned for all non-regna, all that remains will be the regnum. Pass this output to {{Taxobox colour}} to generate colours for a taxobox.
Examples
{{is reg|Animalia}}→ animalia{{is reg|Columbidae}}→
See also
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