Zostera marina
L.
Zosteraceae
Alga marina (L.) Lam.
Zostera latifolia Morong
Zostera maritima Gaertn.
Zostera oregana S.Watson
Zostera pacifica S.Watson
Zostera stenophylla Raf.
Common Name: Eel Grass
General Information
Zostera marina is a perennial plant growing from a thick, creeping underground stem (rhizome), 2 to 5 cm long, with many roots and nodes spaced 10 to 35mm apart. Alternate ribbon-like leaves with rounded tips arise from these nodes and grow up to 120cm long and 2 - 12mm wide[
277- Title
- Plants Database
- Publication
-
- Author
-
- Website
- http://plants.usda.gov/java/factSheet
- Publisher
- United States Department of Agriculture
- Year
- 0
- ISBN
-
- Description
- An online database with an excellent collection of fact sheets about native N. American plants.
].
The plant is harvested from the wild for local use as a food, medicine and source of materials.
This species is widespread, circumglobal in the Northern hemisphere. There have been documented localized declines in parts of the range, but not sufficient to warrant placement in a threatened category. The plant is classified as 'Least Concern' in the IUCN Red List of Threatened Species(2013)[
338- Title
- IUCN Red List of Threatened Species
- Publication
-
- Author
-
- Website
- http://www.iucnredlist.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].
Known Hazards
None known
Botanical References
17- Title
- Flora of the British Isles.
- Publication
-
- Author
- Clapham, Tutin and Warburg.
- Publisher
- Cambridge University Press
- Year
- 1962
- ISBN
- -
- Description
- A very comprehensive flora, the standard reference book but it has no pictures.
Range
Coastal regions of Europe, N. Africa (Morocco, Algeria), W. Asia, Russian Far East, N. America (Alaska to Mexico, Newfoundland to N. Carolina)
Habitat
Fine gravel, sand or mud in the sea from low water spring tides to depths of 4 metres in the Atlantic Ocean, rarely in estuaries[
17- Title
- Flora of the British Isles.
- Publication
-
- Author
- Clapham, Tutin and Warburg.
- Publisher
- Cambridge University Press
- Year
- 1962
- ISBN
- -
- Description
- A very comprehensive flora, the standard reference book but it has no pictures.
]. In the Black Sea, it is found in pure and mixed stands from 0.5 - 15 metres depth on silty-sandy substrates[
338- Title
- IUCN Red List of Threatened Species
- Publication
-
- Author
-
- Website
- http://www.iucnredlist.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].
Properties
| Conservation Status | Least Concern |
| Edibility Rating |  |
| Medicinal Rating |  |
| Other Uses Rating |  |
| Habit | Perennial |
| Height | 1.00 m |
| Pollinators | Water |
| Cultivation Status | Wild |
Cultivation Details
A plant of shallow sea water, it is not really suitable for normal cultivation. It has a wide salinity tolerance of 5-35 ppt[
338- Title
- IUCN Red List of Threatened Species
- Publication
-
- Author
-
- Website
- http://www.iucnredlist.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].
Edible Uses
Leaves - raw or cooked[
177- Title
- Plants for Human Consumption.
- Publication
-
- Author
- Kunkel. G.
- Publisher
- Koeltz Scientific Books
- Year
- 1984
- ISBN
- 3874292169
- Description
- An excellent book for the dedicated. A comprehensive listing of Latin names with a brief list of edible parts.
,
256- Title
- Food Plants of Coastal First Peoples
- Publication
-
- Author
- Turner. N. J.
- Publisher
- UBC Press. Vancouver.
- Year
- 1995
- ISBN
- 0-7748-0533-1
- Description
- Excellent little handbook about the native food plants of Western Canada. Good descriptions of the plants and their uses with colour photos of most plants.
]. The leaf bases are crisp and sweet, they were often used as a feast food by the native North American Indians[
256- Title
- Food Plants of Coastal First Peoples
- Publication
-
- Author
- Turner. N. J.
- Publisher
- UBC Press. Vancouver.
- Year
- 1995
- ISBN
- 0-7748-0533-1
- Description
- Excellent little handbook about the native food plants of Western Canada. Good descriptions of the plants and their uses with colour photos of most plants.
].
Seed[
177- Title
- Plants for Human Consumption.
- Publication
-
- Author
- Kunkel. G.
- Publisher
- Koeltz Scientific Books
- Year
- 1984
- ISBN
- 3874292169
- Description
- An excellent book for the dedicated. A comprehensive listing of Latin names with a brief list of edible parts.
]. Roasted and ground as a porridge[
].
The root of the plant is chewed for its saccharine juice[
2- Title
- Sturtevant's Edible Plants of the World.
- Publication
-
- Author
- Hedrick. U. P.
- Publisher
- Dover Publications
- Year
- 1972
- ISBN
- 0-486-20459-6
- Description
- Lots of entries, quite a lot of information in most entries and references.
,
105- Title
- Tanaka's Cyclopedia of Edible Plants of the World.
- Publication
-
- Author
- Tanaka. T. & Nakao S.
- Publisher
- Keigaku Publishing; Tokyo
- Year
- 1976
- ISBN
- -
- Description
- The most comprehensive list of edible plants I've come across. Only the briefest entry for each species, though, and some of the entries are more than a little dubious. Not for the casual reader.
]. The root is crisp and sweet, it was used as a flavouring by the native North American Indians and was also dried for winter food[
256- Title
- Food Plants of Coastal First Peoples
- Publication
-
- Author
- Turner. N. J.
- Publisher
- UBC Press. Vancouver.
- Year
- 1995
- ISBN
- 0-7748-0533-1
- Description
- Excellent little handbook about the native food plants of Western Canada. Good descriptions of the plants and their uses with colour photos of most plants.
]. The raw rhizomes were often used as a feast food[
256- Title
- Food Plants of Coastal First Peoples
- Publication
-
- Author
- Turner. N. J.
- Publisher
- UBC Press. Vancouver.
- Year
- 1995
- ISBN
- 0-7748-0533-1
- Description
- Excellent little handbook about the native food plants of Western Canada. Good descriptions of the plants and their uses with colour photos of most plants.
].
Medicinal
The leaves are used in the treatment of dropsy, goitre and women's illnesses[
218- Title
- Medicinal Plants of China
- Publication
-
- Author
- Duke. J. A. and Ayensu. E. S.
- Publisher
- Reference Publications, Inc.
- Year
- 1985
- ISBN
- 0-917256-20-4
- Description
- Details of over 1,200 medicinal plants of China and brief details of their uses. Often includes an analysis, or at least a list of constituents. Heavy going if you are not into the subject.
].
Agroforestry Uses:
Eelgrass is desirable for nearshore restoration, due to its ability to stabilize sediments and reduce erosion. Seagrass
restoration is also a tool for improving water quality and providing habitat for various aquatic and coastal species[
277- Title
- Plants Database
- Publication
-
- Author
-
- Website
- http://plants.usda.gov/java/factSheet
- Publisher
- United States Department of Agriculture
- Year
- 0
- ISBN
-
- Description
- An online database with an excellent collection of fact sheets about native N. American plants.
].
Other Uses
The dried leaves and stems are used as a packing material[
46- Title
- Dictionary of Economic Plants.
- Publication
-
- Author
- Uphof. J. C. Th.
- Publisher
- Weinheim
- Year
- 1959
- ISBN
- -
- Description
- An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
,
61- Title
- A Dictionary of Plants Used by Man.
- Publication
-
- Author
- Usher. G.
- Publisher
- Constable
- Year
- 1974
- ISBN
- 0094579202
- Description
- Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.
,
66- Title
- From Agar to Zenery.
- Publication
-
- Author
- Freethy. R.
- Publisher
- The Crowood Press
- Year
- 1985
- ISBN
- 0-946284-51-2
- Description
- Very readable, giving details on plant uses based on the authors own experiences.
,
100- Title
- Flowers of Europe - A Field Guide.
- Publication
-
- Author
- Polunin. O.
- Publisher
- Oxford University Press
- Year
- 1969
- ISBN
- 0192176218
- Description
- An excellent and well illustrated pocket guide for those with very large pockets. Also gives some details on plant uses.
].
Eelgrass was once harvested for use as stuffing in mattress manufacture prior to industrial production of synthetic fibers[
277- Title
- Plants Database
- Publication
-
- Author
-
- Website
- http://plants.usda.gov/java/factSheet
- Publisher
- United States Department of Agriculture
- Year
- 0
- ISBN
-
- Description
- An online database with an excellent collection of fact sheets about native N. American plants.
]. Due to its low flammability, dried eelgrass shoots were also used as housing insulation[
277- Title
- Plants Database
- Publication
-
- Author
-
- Website
- http://plants.usda.gov/java/factSheet
- Publisher
- United States Department of Agriculture
- Year
- 0
- ISBN
-
- Description
- An online database with an excellent collection of fact sheets about native N. American plants.
].
The plant is frequently used as a manure[
2- Title
- Sturtevant's Edible Plants of the World.
- Publication
-
- Author
- Hedrick. U. P.
- Publisher
- Dover Publications
- Year
- 1972
- ISBN
- 0-486-20459-6
- Description
- Lots of entries, quite a lot of information in most entries and references.
].
Propagation
Seed - best sown as soon as it is ripe.
Division.
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Useful Temperate Plants Database 2016 by
Ken Fern,
web interface by
Ajna Fern
with help from
Richard Morris.
