Club moss and Fern ally

Club moss noun - Primitive evergreen moss-like plant with spores in club-shaped strobiles.

Fern ally and club moss are semantically related. In some cases you can use "Fern ally" instead a noun phrase "Club moss".

Fern ally noun - Pteridophytes of other classes than Filicopsida.

Club moss and fern ally are semantically related. Sometimes you can replace phrase "Club moss" with "Fern ally", this phrases are similar.