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This genus is accepted, and its native range is Temp. & Subtropical to New Guinea.
Zostera marina


Zosteraceae, H. J. Beentje, M.Sc., Ph.D., F.L.S.. Flora of Tropical East Africa. 1999

Morphology General Habit
Submerged marine plants; rhizome matted, orange-brown, creeping, monopodial, compressed, rooting at the nodes; erect stems annual, compressed, glabrous, the sterile stems short and arising from the axils of rhizomatous leaves, the floriferous stems terminal or lateral, sympodial, longer than the sterile stems, branched, each branch with an inflorescence
Morphology Leaves
Leaves distichous, linear; leaf-sheath compressed, amplexicaul, membranous, auriculate and ligulate, persisting longer than the leaf- blades; leaf-blade linear, with 3–11 nerves and accessory bundles in between, margins entire or somewhat denticulate distally
Morphology Reproductive morphology Inflorescences
Inflorescence terminal or lateral, forming erect annual branches, each terminating in a fertile leaf with the sheath containing a sessile, flattened, linear spadix with or without bract-like lobes (retinacula) that fold over one or more flowers
Morphology Reproductive morphology Flowers
Flowers in two lines of alternating staminate and pistillate flowers on one surface of spadix; anthers single, sessile, of (1–)2(–3) locules connected by a ridge-like connective; ovary uniovulate, with persistent style, the stigmas protruding from the sheath at anthesis
Morphology Reproductive morphology Fruits
Fruit membranous, cylindrical to ovoid, 1-seeded, indehiscent or irregularly dehiscent; pericarp scarious; seed ellipsoid or ovoid, smooth or ribbed; embryo grooved.

Doubtfully present in:


Native to:

Alaska, Aleutian Is., Algeria, Angola, Baleares, Baltic States, Bangladesh, Belgium, Bermuda, British Columbia, Bulgaria, California, Canary Is., Cape Provinces, Central American Pac, Chile Central, China North-Central, Connecticut, Corse, Delaware, Denmark, East Aegean Is., Egypt, Finland, France, Føroyar, Germany, Great Britain, Greece, Greenland, Honduras, Iceland, Iran, Ireland, Italy, Japan, Kamchatka, Kazakhstan, Kenya, Khabarovsk, Korea, Kriti, Krym, Kuril Is., KwaZulu-Natal, Libya, Madagascar, Magadan, Maine, Manchuria, Maryland, Massachusetts, Mauritania, Mexican Pacific Is., Mexico Northwest, Morocco, Mozambique, Myanmar, Nansei-shoto, Netherlands, New Brunswick, New Guinea, New Hampshire, New South Wales, New York, New Zealand North, New Zealand South, Newfoundland, Norfolk Is., North Carolina, North Caucasus, North European Russi, Northwest European R, Norway, Nova Scotia, Nunavut, Ontario, Oregon, Poland, Portugal, Primorye, Prince Edward I., Queensland, Québec, Rhode I., Romania, Sakhalin, Sardegna, Sicilia, Sinai, South Australia, South European Russi, Spain, Sweden, Taiwan, Tanzania, Tasmania, Thailand, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Ukraine, Uzbekistan, Victoria, Vietnam, Virginia, Washington, Western Australia, Western Sahara, Yugoslavia, Yukon

Zostera L. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Melville, R., New Zealand 37179.000

First published in Sp. Pl.: 968 (1753)

Accepted by

  • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.


Flora of Tropical East Africa

  • Asch. in E. & P. Pf. 2, 1: 201 (1889)
  • Graebn. in E.P. 4, 2: 27 (1907)
  • L., Gen. Pl. ed. 5: 415 (1754)
  • Setch. in Proc. Nat. Acad. Sci. 19: 810 (1933)
  • Sp. Pl.: 968 (1753)
  • den Hartog, Sea-grasses of the World: 42 (1970)

Flora of Tropical East Africa
Flora of Tropical East Africa

Herbarium Catalogue Specimens

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at and
© Copyright 2017 World Checklist of Selected Plant Families.

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at and
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.