# Narrowleaf sword fern (*Polystichum imbricans*) The Narrowleaf sword fern is a lovely green plant with long, narrow leaves that look like swords! It grows in shady places and adds beauty to forests and gardens. - **Category:** [Plants](https://www.snappit.app/explore/categories/plant) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 1 - **Habitat:** Forests ![Narrowleaf sword fern](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Polystichum_imbricans.jpg&width=800) Photo: Stephen Sikes, CC BY 4.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Polystichum_imbricans.jpg) ## Appearance The Narrowleaf sword fern has stiff, upright fronds with distinct, narrow leaflets that overlap slightly like roof shingles. Its dark green leaves form a striking, erect clump, visually setting it apart from broader-leafed ferns. ## Taxonomy - **Kingdom:** Plantae - **Phylum:** Tracheophyta - **Class:** Polypodiopsida - **Order:** Polypodiales - **Family:** Dryopteridaceae - **Genus:** Polystichum ## Interesting facts - Instead of seeds, it makes tiny, dust-like spores to reproduce! - Its fronds feel stiff and leathery, almost like plastic! - Look closely: its leaflets stack like tiny roof tiles! - This fern's leaves stay green all year, even in winter snow! ## Special abilities - **Spore Slingers:** Narrowleaf sword fern can launch tiny spores from its fronds, helping it spread far and wide without needing seeds! - **Evergreen Edge:** The Narrowleaf sword fern has tough, leathery fronds that stay green all winter, helping it photosynthesize longer. - **Shingle Shield:** Its overlapping, scale-like leaflets help shed excess water, protecting the fern from moisture extremes. ## Measurements & details - **Height:** 30-90 cm - **Spread:** 30-60 cm - **Edible:** No - **Toxicity:** None - **Lifecycle:** Perennial ## Ecological connections - **Eaten by:** [Mule deer](https://www.snappit.app/explore/mule-deer) (*Odocoileus hemionus*) — Occasionally browsed by deer, especially in lean seasons. - **Shelter:** [Black slug](https://www.snappit.app/explore/black-slug) (*Arion ater*) — Provides damp cover for slugs and other small creatures. - **Depends on:** Bonnet mushroom (*Mycena adscendens*) — Decomposes dead fern fronds on the forest floor. - **Shelter:** [Redwood sorrel](https://www.snappit.app/explore/redwood-sorrel) (*Oxalis oregana*) — Its canopy helps shade understory plants like redwood sorrel. ## Traits - [Ornamental](https://www.snappit.app/explore/traits/ornamental): Ornamental plants are cultivated primarily for their aesthetic appeal, enhancing landscapes and gardens with their attractive foliage, flowers, or form. - [Grass-Like](https://www.snappit.app/explore/traits/grass-like): Grass-like plants are herbaceous plants that visually resemble true grasses, typically having long, narrow leaves. - [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. - [Evergreen](https://www.snappit.app/explore/traits/evergreen): Evergreen plants retain their foliage throughout the year, never shedding all their leaves at once. - [Rapid Growing](https://www.snappit.app/explore/traits/rapid-growing): Rapid growing plants exhibit accelerated growth rates, quickly increasing in size and biomass within a short period. - [Ancient Lineage](https://www.snappit.app/explore/traits/ancient-lineage): This trait signifies organisms belonging to a very old evolutionary group with ancestors dating back millions of years. - [Decomposer](https://www.snappit.app/explore/traits/decomposer): Describes organisms that break down dead organic material, recycling nutrients back into the ecosystem. - [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 be careful when exploring plants, and don't touch any you don't know. ## Frequently Asked Questions ### How to identify Narrowleaf sword 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 Narrowleaf sword fern? 30-90 cm ### How wide does Narrowleaf sword fern spread? 30-60 cm ### Is Narrowleaf sword fern edible? No ### Is Narrowleaf sword fern toxic? None ### What is Narrowleaf sword fern's lifecycle? Perennial ### Where is Narrowleaf sword fern usually found? Forests ## Where to spot - [Rim Village Historic District](https://www.snappit.app/guides/places/rim-village-historic-district) — Oregon, US · Historic District - [Munson Valley Historic District](https://www.snappit.app/guides/places/munson-valley-historic-district) — Oregon, US · Historic District - [Sooke Mountain Provincial Park](https://www.snappit.app/guides/places/sooke-mountain-provincial-park) — British Columbia, CA · State Park [View all places to see Narrowleaf sword fern](https://www.snappit.app/guides/where-to-see/narrowleaf-sword-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*) --- Source: [Narrowleaf sword fern: Facts & Places to See — Snappit](https://www.snappit.app/explore/narrowleaf-sword-fern)