Selaginella willdenowii
Botanical name: Selaginella sp.
Common name: Spikemoss
Family: Selaginellaceae
The Spikemosses are creeping or ascendant plants with simple, scale-like leaves on branching stems from which roots also arise. They can be used for edging greenhouse benches, covering pillars, planting in hanging baskets and decorating terrariums.
Link to this plant:
https://toptropicals.com/catalog/uid/selaginella_sp.htm