Diphasium

Diphasium is a genus of lycophytes in the family Lycopodiaceae. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is placed in the subfamily Lycopodioideae.^[2] Some sources do not recognize the genus, sinking it into Lycopodium,^[3] others include it in Diphasiastrum.^[1] Diphasium species are mostly native to the temperate southern hemisphere, but extend northwards into Central America and the Caribbean.^[1]

Diphasium
Diphasium scariosum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Lycophytes
Class:	Lycopodiopsida
Order:	Lycopodiales
Family:	Lycopodiaceae
Subfamily:	Lycopodioideae
Genus:	Diphasium C.Presl ex Rothm.[1]
Species
See text.

Species

As of June 2024^[update], the Checklist of Ferns and Lycophytes of the World recognized the following species:^[1]

• Diphasium gayanum (J.Rémy) Holub
• Diphasium jussiaei (Desv. ex Poir.) Rothm.
• Diphasium lawessonianum (B.Øllg.) B.Øllg.
• Diphasium scariosum (G.Forst.) Rothm.