Usage: <ref name=WF>{{subst:User:Peter coxhead/World Ferns|taxon=TAXON}}</ref>
- Hassler, Michael (2004–2021). "Lycopodium clavatum". World Ferns. Retrieved 2024-05-25.
Usage: <ref name=WF>{{subst:User:Peter coxhead/World Ferns|taxon=TAXON}}</ref>