| Noun | 1. | club-moss - primitive evergreen moss-like plant with spores in club-shaped strobilesfern ally - pteridophytes of other classes than Filicopsida class Lycopodiate, class Lycopsida, Lycopodiate, Lycopsida - club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta Lycopodium lucidulum, shining clubmoss - a variety of club moss alpine clubmoss, Lycopodium alpinum - a variety of club moss fir clubmoss, little clubmoss, Lycopodium selago, mountain clubmoss - of northern Europe and America; resembling a miniature fir Christmas green, ground pine - any of several club mosses having long creeping stems and erect branches |