No idea what this is.
It's about 25cm tall, even green and fishbone like branches. Actually, if I compare it with Remu branches (second photo) they look remarkably the same.
Lycopodiopsida is a class of plants often loosely grouped as the fern allies. Traditionally the group included not only the clubmosses and firmosses, but also the spikemosses (Selaginella and relatives) and the quillworts (Isoetes and relatives). However, the latter are now usually separated off into a separate class, Isoetopsida.