# interrupted fern (*Osmunda claytoniana*)

The interrupted fern is a beautiful plant with fronds that look like they have been cut. It grows in shady, moist places and is fun to find in the wild!

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 31
- **Habitat:** Wetlands

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

Photo: CC BY-SA 2.0 ca · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Osmunda_claytoniana_JSG.jpg)

## Appearance

The interrupted fern has tall, arching green fronds that grow in a vase-like clump. Its unique feature is the brown, spore-bearing segments that appear in the middle of otherwise green fronds, looking like a missing piece.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Polypodiopsida
- **Order:** Osmundales
- **Family:** Osmundaceae
- **Genus:** Claytosmunda

## Interesting facts

- It's a 'living fossil,' very similar to ferns that lived with dinosaurs!
- Its name comes from the fertile frond sections that interrupt the leafy ones.
- Some Indigenous peoples traditionally used parts of this fern for food and medicine.
- This fern helps prevent soil erosion, especially on stream banks and hillsides.

## Special abilities

- **Spore Shooter:** The interrupted fern can reproduce by releasing tiny spores from special segments on its fronds, allowing it to spread far and wide.
- **Fiddlehead Feast:** This fern has young, curled fronds called fiddleheads that are edible when cooked, providing a tasty snack for humans.
- **Sun Screen:** Young fronds are covered in fuzzy, protective hairs that act like a natural sunscreen, shielding them from harsh sunlight.

## Measurements & details

- **Height:** 60-120 cm
- **Spread:** 60-90 cm
- **Edible:** Yes
- **Toxicity:** None
- **Lifecycle:** Perennial

## Ecological connections

- **Shelter:** [Spotted Salamander](https://www.snappit.app/explore/spotted-salamander) (*Ambystoma maculatum*) — finds moist cover beneath its fronds
- **Shelter:** [Eastern Red-backed Salamander](https://www.snappit.app/explore/eastern-red-backed-salamander) (*Plethodon cinereus*) — hides in the shade and dampness under its leaves
- **Shelter:** Meadow Vole (*Microtus pennsylvanicus*) — uses dense fern growth for cover from predators

## Traits

- [Deciduous](https://www.snappit.app/explore/traits/deciduous): Deciduous plants periodically shed all their leaves, typically during autumn or dry seasons.
- [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.
- [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors.
- [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.
- [Wetland](https://www.snappit.app/explore/traits/wetland): This habitat trait identifies species found in wetlands, which are areas of land saturated with water, either permanently or seasonally, including marshes, swamps, and bogs.

## Collections

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

## Safety

**Danger:** 1/5 · Very low

Do not touch plants without asking an adult, as some can be harmful.

## Frequently Asked Questions

### How to identify interrupted fern?

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 interrupted fern?

60-120 cm

### How wide does interrupted fern spread?

60-90 cm

### Is interrupted fern edible?

Yes

### Is interrupted fern toxic?

None

### What is interrupted fern's lifecycle?

Perennial

### Where is interrupted fern usually found?

Wetlands

## Where to spot

- [Bartholomew's Cobble](https://www.snappit.app/guides/places/bartholomews-cobble) — Massachusetts, US · Nature Reserve
- [Bixby State Preserve](https://www.snappit.app/guides/places/bixby-state-preserve) — Iowa, US · Nature Reserve
- [Catskill Park](https://www.snappit.app/guides/places/catskill-park) — New York, US · Nature Reserve
- [Chesterfield Gorge](https://www.snappit.app/guides/places/chesterfield-gorge) — Massachusetts, US · Nature Reserve
- [Downtown Ossining Historic District](https://www.snappit.app/guides/places/downtown-ossining-historic-district) — New York, US · Historic District
- [Frelinghuysen Arboretum](https://www.snappit.app/guides/places/frelinghuysen-arboretum) — New Jersey, US · Botanical Garden

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

## 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: [Interrupted Fern: Facts & Places to See — Snappit](https://www.snappit.app/explore/interrupted-fern)
