# brittle bladderfern (*Cystopteris fragilis*)

The brittle bladderfern is a lovely green plant that likes to grow in shady places. Its delicate leaves look like tiny fans and can be found in forests and along streams.

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 2
- **Habitat:** Forests

![brittle bladderfern](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Cystopteris_fragilis_3.jpg&width=800)

Photo: Stan Shebs, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Cystopteris_fragilis_3.jpg)

## Appearance

The brittle bladderfern has delicate, bright green, lacy fronds that are twice or thrice pinnate. Its triangular blades attach to slender, dark, brittle stems, giving it an airy appearance distinct from many other woodland ferns.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Polypodiopsida
- **Order:** Polypodiales
- **Family:** Cystopteridaceae
- **Genus:** Cystopteris

## Interesting facts

- It's one of the fastest-growing ferns, quickly popping up new green fronds!
- Look closely: it makes tiny, dust-like spores instead of seeds to grow!
- This fern can grow in super cold places, even way up high in mountains!
- Wow! Its name 'fragilis' means fragile because its leaf stalks break easily!

## Special abilities

- **Fast Frond Former:** Brittle bladderfern can quickly regrow new fronds from its underground rhizome after damage or cold weather, aiding survival.
- **Spore Sprinkler:** This fern produces vast numbers of tiny spores that are carried by wind, helping it spread widely without needing seeds or flowers.
- **Rocky Resider:** It can anchor itself in small rock crevices and thrive in poor soil, helping it colonize places other plants can't.

## Measurements & details

- **Height:** 10-40 cm
- **Spread:** 15-30 cm
- **Edible:** Yes
- **Toxicity:** None
- **Lifecycle:** Perennial

## Ecological connections

- **Eats:** Spanish Slug (*Arion vulgaris*) — Slugs often graze on its delicate fronds.
- **Eats:** Grove Snail (*Cepaea nemoralis*) — Snails can feed on young fern growth.
- **Eaten by:** [White-tailed Deer](https://www.snappit.app/explore/white-tailed-deer) (*Odocoileus virginianus*) — Deer may occasionally browse fern fronds.

## Traits

- [Deciduous](https://www.snappit.app/explore/traits/deciduous): Deciduous plants periodically shed all their leaves, typically during autumn or dry seasons.
- [Nonvascular](https://www.snappit.app/explore/traits/nonvascular): This trait characterizes plants lacking specialized vascular tissues (xylem and phloem) for transporting water and nutrients.
- [Shade Tolerant](https://www.snappit.app/explore/traits/shade-tolerant): Shade tolerant plants are adapted to grow and thrive in areas with low light levels, requiring less direct sunlight.
- [Spore Producing](https://www.snappit.app/explore/traits/spore-producing): Spore-producing organisms reproduce by releasing small, often single-celled, reproductive units called spores.
- [Forest](https://www.snappit.app/explore/traits/forest): Forest habitats are terrestrial environments dominated by dense tree cover, supporting a high diversity of plant and animal life.

## Collections

- [Plants](https://www.snappit.app/explore/collections/plants)

## Safety

**Danger:** 1/5 · Very low

Always look but don't touch plants unless you know they are safe.

## Frequently Asked Questions

### How to identify brittle bladderfern?

Compare frond shape, how the leaflets are arranged, the stalk, and any spore clusters you can see. A single detached leaflet often hides the plant's overall growth pattern. Fern Identifier: upload a photo and compare the visible details.

### How tall is brittle bladderfern?

10-40 cm

### How wide does brittle bladderfern spread?

15-30 cm

### Is brittle bladderfern edible?

Yes

### Is brittle bladderfern toxic?

None

### What is brittle bladderfern's lifecycle?

Perennial

### Where is brittle bladderfern usually found?

Forests

## Where to spot

- [Lower Cushman Dam](https://www.snappit.app/guides/places/lower-cushman-dam) — Washington, US · Historic Site
- [Ruedi Reservoir](https://www.snappit.app/guides/places/ruedi-reservoir) — Colorado, US · Natural Landmark
- [Ordesa y Monte Perdido National Park](https://www.snappit.app/guides/places/ordesa-y-monte-perdido-national-park) — Aragon, ES · National Park
- [Lockhart Creek Provincial Park](https://www.snappit.app/guides/places/lockhart-creek-provincial-park) — British Columbia, CA · State Park

[View all places to see brittle bladderfern](https://www.snappit.app/guides/where-to-see/brittle-bladderfern)

## More Plants

- [white snakeroot](https://www.snappit.app/explore/white-snakeroot) (*Ageratina altissima*)
- [tree-of-heaven](https://www.snappit.app/explore/tree-of-heaven) (*Ailanthus altissima*)
- [western sword fern](https://www.snappit.app/explore/western-sword-fern) (*Polystichum munitum*)
- [common milkweed](https://www.snappit.app/explore/common-milkweed) (*Asclepias syriaca*)

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Source: [Brittle Bladderfern: Facts & Places to See — Snappit](https://www.snappit.app/explore/brittle-bladderfern)