# Eelgrass (*Zostera marina*)

Eelgrass is a special underwater plant that grows in the ocean. It provides homes for fish and helps keep the water clean and healthy.

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

![Eelgrass](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Zostera_marina.jpeg&width=800)

Photo: Kristian Peters -- Fabelfroh 09:28, 16 September 2006 (UTC), CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Zostera_marina.jpeg)

## Appearance

The Eelgrass has long, bright green, ribbon-like leaves that form dense underwater meadows. Its thin, flowing blades make it look distinct from stiff seaweeds, swaying gracefully with ocean currents and often appearing as a lush green carpet.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Liliopsida
- **Order:** Alismatales
- **Family:** Zosteraceae
- **Genus:** Zostera

## Interesting facts

- Eelgrass meadows are incredible carbon sinks, storing more CO2 than tropical rainforests!
- It's a true underwater flowering plant, making it unique among ocean flora!
- Some coastal communities historically wove dried eelgrass into roofs for insulation and building homes.
- Tiny marine snails graze on the film of microscopic life that grows on eelgrass blades.

## Special abilities

- **Ocean's Lung:** Eelgrass can photosynthesize underwater, releasing vital oxygen into the ocean for marine life to breathe.
- **Rooted Anchor:** Eelgrass has strong underground rhizomes that firmly anchor it, preventing erosion and keeping it rooted in shifting sands.
- **Wave Buffer:** Eelgrass meadows can absorb wave energy, protecting coastlines from storms and reducing erosion.

## Measurements & details

- **Height:** 50-200 cm
- **Bloom Season:** Summer
- **Edible:** Yes
- **Toxicity:** None
- **Lifecycle:** Perennial
- **Pollination Method:** Water

## Ecological connections

- **Eats:** Green Sea Turtle (*Chelonia mydas*) — important food source
- **Shelter:** [Pacific Herring](https://www.snappit.app/explore/pacific-herring) (*Clupea pallasii*) — lays eggs on blades
- **Shelter:** [Dungeness Crab](https://www.snappit.app/explore/dungeness-crab) (*Cancer magister*) — juveniles hide in beds
- **Shelter:** [Harbor Seal](https://www.snappit.app/explore/harbor-seal) (*Phoca vitulina*) — foraging and resting habitat

## Traits

- [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.
- [Evergreen](https://www.snappit.app/explore/traits/evergreen): Evergreen plants retain their foliage throughout the year, never shedding all their leaves at once.
- [Edible](https://www.snappit.app/explore/traits/edible): Edible plants are those parts of a plant that are considered safe for human consumption.
- [Coastal](https://www.snappit.app/explore/traits/coastal): Coastal habitats are dynamic environments located along the interface between land and sea, influenced by tides, waves, and saltwater.
- [Keystone Species](https://www.snappit.app/explore/traits/keystone-species): Describes a species whose presence and role have a disproportionately large effect on its environment.
- [Aquatic](https://www.snappit.app/explore/traits/aquatic): Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands.
- [Marine](https://www.snappit.app/explore/traits/marine): Marine habitats encompass all saltwater environments of the Earth's oceans, supporting an immense diversity of aquatic life.
- [Threatened](https://www.snappit.app/explore/traits/threatened): Threatened status denotes a species likely to become endangered in the foreseeable future without effective conservation interventions.

## Collections

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

## Safety

**Danger:** 1/5 · Very low

Always be careful when swimming near plants in the water; they can be slippery.

## Frequently Asked Questions

### How to identify Eelgrass?

Start with the whole plant, then compare leaf arrangement, leaf edges, stems and any flowers or fruit. Opposite leaves grow in pairs; alternate leaves come one at a time along the stem. These details tell you far more together than a single green leaf does. Plant Identifier: upload a photo and compare the visible details.

### How tall is Eelgrass?

50-200 cm

### When does Eelgrass bloom?

Summer

### Is Eelgrass edible?

Yes

### Is Eelgrass toxic?

None

### What is Eelgrass's lifecycle?

Perennial

### How is Eelgrass pollinated?

Water

### Where is Eelgrass usually found?

Coastal areas

## Where to spot

- [Gulf of Morbihan Regional Nature Park](https://www.snappit.app/guides/places/gulf-of-morbihan-regional-nature-park) — Bretagne, FR · Park
- [Hallyeohaesang National Park](https://www.snappit.app/guides/places/hallyeohaesang-national-park) — KR · Park

## 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: [Eelgrass: Characteristics, Facts & Places to See — Snappit](https://www.snappit.app/explore/eelgrass)
