Cystopteris bulbifera is a type of fern commonly known as the bulblet fern. It is also referred to as the rock fern, bladder fern, and bulb-bearing fern. The name "bulblet fern" comes from the small bulbs or bulbils that grow on the fronds, which can fall off and grow into new ferns. The term "rock fern" references the plant's preference for rocky habitats. "Bladder fern" refers to the inflated leaflets that look like small bladders, and "bulb-bearing fern" is another reference to the bulbils. Whatever name you choose to use, Cystopteris bulbifera is a fascinating and attractive fern that can add texture and interest to any garden.