Editing Lycopodium (section)

==Taxonomy==
The genus ''Lycopodium'' was first published by [[Carl Linnaeus]] in 1753.<ref name="IPNI_30000138-2">{{cite web |title=''Lycopodium'' L. |work=[[International Plant Names Index|The International Plant Names Index]] |url=https://www.ipni.org/n/30000138-2 |access-date=2019-12-21 }}</ref> He placed it in the Musci (mosses) along with genera such as ''[[Sphagnum]]'', and included species such as ''Lycopodium selaginoides'',<ref name=Linn53>{{Citation |mode=cs1 |last1=Linnaeus |first1=C. |date=1753 |contribution=Lycopodium |title=Species Plantarum |volume=II |pages=1100ff |contribution-url=https://biodiversitylibrary.org/page/359121 |access-date=2019-12-21  }}</ref> now placed in the genus ''[[Selaginella]]'' in a different order from ''Lycopodium''. Different sources use substantially different [[Circumscription (taxonomy)|circumscriptions]] of the genus. Traditionally, ''Lycopodium'' was considered to be the only extant genus in the family [[Lycopodiaceae]], so includes all the species in the family, although sometimes excluding one placed in the monotypic genus ''[[Phylloglossum]]''.<ref name=Spor66>{{Citation |mode=cs1 |last1=Sporne |first1=K.R. |date=1966 |title=The Morphology of Pteridophytes |edition=2nd |location=London |publisher=Hutchinson |at=chap. 4 |oclc=253704767 }}</ref> Other sources divide Lycopodiaceae species into three broadly defined genera, ''Lycopodium'', ''Huperzia'' (including ''Phylloglossum'') and ''Lycopodiella''. In this approach, ''Lycopodium'' [[Sensu|sensu lato]] has about 40 species.<ref name=ChriChas14>{{Cite journal |last1=Christenhusz |first1=Maarten J.M. |last2=Chase |first2=Mark W. |date=2014 |title=Trends and concepts in fern classification |journal=Annals of Botany |volume=113 |issue=9 |pages=571–594 |doi=10.1093/aob/mct299 |pmid=24532607 |pmc=3936591 |name-list-style=amp }}</ref><ref name=POWO_30000138-2/> In the [[Pteridophyte Phylogeny Group]] classification of 2016 (PPG I), the broadly defined genus is equivalent to the subfamily [[Lycopodioideae]], and ''Lycopodium'' is one of 16 genera in the family Lycopodiaceae, with between 9 and 15 species.<ref name=CFLW/><ref name=PPGI/>

{| class="wikitable"
|+ Varying circumscriptions of ''Lycopodium''
|-
! Traditional<ref name=Spor66/> !! Christenhusz & Chase (2014)<ref name=ChriChas14/> !! PPG I<ref name=PPGI/>
|-
|rowspan=2| '''''Lycopodium'''''<br/>+ ''Phylloglossum'' || '''''Lycopodium''''' s.l. || '''''Lycopodium''''' s.s. + 8 other genera making up subfamily [[Lycopodioideae]]
|-
| Two other genera || 7 genera (including ''Phylloglossum'') in two subfamilies
|}

===Species===
[[File:EB1911 Lycopodium -Fig. 1 - Lycopodium clavatum.jpg|thumb|right|200px|''Lycopodium clavatum'']]
Using the narrow [[Circumscription (taxonomy)|circumscription]] of ''Lycopodium'', in which it is one of nine genera in the subfamily  Lycopodioideae, the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species {{As of|2024|June|lc=yes}}:<ref name=CFLW/>
*''[[Lycopodium clavatum]]'' <small>L.</small> – stag's-horn clubmoss; subcosmopolitan
*''[[Lycopodium diaphanum]]'' <small>(P.Beauv.) Sw.</small> – [[Tristan da Cunha]]
*''[[Lycopodium japonicum]]'' <small>Thunb.</small> – eastern Asia (Japan west and south to [[India]] and [[Sri Lanka]])
*''[[Lycopodium lagopus]]'' <small>(Laest. ex C.Hartm.) Zinserl. ex Kuzen.</small> – circumpolar arctic and subarctic
*''[[Lycopodium papuanum]]'' <small>Nessel</small> – New Guinea
*''[[Lycopodium venustulum]]'' <small>Gaudich.</small> – [[Hawaii]], [[Western Samoa]], the [[Society Islands]]
*''[[Lycopodium vestitum]]'' <small>Desv. ex Poir.</small> – northwest South America (Andes)