The more than 700 species of the plant genus Selaginella P.Beauv are perennials. Their other names include spike moss, club-spike moss and rock spike-moss. They are fern- or moss-like plants less than seven inches high.
About this Author
A freelance writer, Judy Wolfe has owned Prose for the Pros, a freelance writing business, since 2006. She's been an inveterate traveler since 1961 and draws on her travel experiences to provide articles for such websites as Chincoteague Island Vacations and Berlin Dude. Wolfe holds a Bachelor of Arts in literature from California State University at Pomona.