Northern Woodsia is a plant native to North America that grows in the rocky crevices of boreal forests and mountainous regions. It is a fern with delicate fronds that give it a graceful appearance. Its scientific name is Woodsia ilvensis, and it belongs to the family Woodsiaceae. The plant is also known by a few common names, such as Brittle Bladderfern, Rusty Woodsia, and Appalachian Woodsia. These synonyms reflect the plant's appearance, habitat, and location. Regardless of its name, Northern Woodsia is a beautiful and interesting plant that plays an essential role in its ecosystem.