The genus members are commonly called bog clubmosses, describing their wetland habitat.

[2] In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), Lycopodiella is placed in the subfamily Lycopodielloideae, along with three other genera.

[3] Other sources use a wider circumscription, in which the genus is equivalent to the Lycopodielloideae of PPG I, in which case about 40 species and hybrids are accepted.

[6] Individuals reproduce by single-celled spores that disperse and germinate into small plants when in suitable conditions.

[8] In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), Lycopodiella is placed in the subfamily Lycopodielloideae, along with three other genera (Lateristachys, Palhinhaea and Pseudolycopodiella).

[13] Individuals are typically found in terrestrial lowlands or montane forests on poor soils.