Woodsia alpina is an alpine fern species that grows in rocky areas and has finely divided fronds. Synonyms for this species include Alpine Woodsia, Woodsia scala, and Woodsia glabella. The plant is also known as the Frosty Woodsia, due to its hardiness in extremely cold temperatures. Woodsia alpina is a native plant of the northwestern United States, as well as other cold areas such as Alaska and northern Canada. The fern is often used in rock gardens and alpine plantings, due to its hardiness and attractive foliage. Overall, Woodsia alpina and its synonyms are important species in the plant world, appreciated for their beauty and adaptability.