species
This is an auxiliary template for use in {{ Speciesbox}} (and perhaps others). It has no direct use. Its purpose in that context is to select a specific epithet from the first of the three possible parameters which contain it.
Examples of usage, assuming that it is used from a page whose name is "Quercus robur":
{{select species|robur|Quercus robur|{{PAGENAMEBASE}} }}
=> robur
{{select species||Quercus robur|{{PAGENAMEBASE}} }}
=> robur
{{select species|||{{PAGENAMEBASE}} }}
=> robur
Typically in {{
Speciesbox}} it will be used in the following way, to select the first non-empty string obtained from the value of the species
parameter, the value of specific epithet of the taxon
parameter and the value of the specific epithet of the page name.
{{select species|{{{species|}}|{{{taxon|}}}|{{PAGENAMEBASE}} }}