Cystopteris Fragilis is a small fern that is often found growing in rocky areas and on cliffs. It has several synonyms that are used interchangeably, including Brittle Bladderfern, Fragile Fern, and Brittle Fern. The name Brittle Bladderfern is derived from the fact that the fern's fronds are delicate and easily broken, while Fragile Fern reflects the plant's delicate nature. Brittle Fern is another common name used for Cystopteris Fragilis, which highlights the fern's tendency to break apart easily. Regardless of the name used, this plant is an interesting addition to any garden, and its delicate foliage and attractive appearance add beauty to any landscape.