- Botanical Name: Selaginella kraussiana
- Common Name(s): spike moss or club moss
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Description: The Frosty Fern, also known as Selaginella martensii or Selaginella kraussiana, is a popular holiday houseplant with green leaves that have white tips that resemble frost. Frosty ferns are low-growing, mound-like plants that can grow up to 12 inches tall with variegated foliage.