selaginella
noun
se·lag·i·nel·la sə-ˌla-jə-ˈne-lə 
: any of a genus (Selaginella) of mosslike lower tracheophytes that are related to or grouped with the club mosses and have scalelike leaves and produce one-celled sporangia containing both megaspores and microspores
Word History
Etymology
New Latin, from Latin selagin-, selago, a plant resembling the savin
First Known Use
1891, in the meaning defined above