Distribution: Occurring west of the Cascades crest in Washington\'s coastal counties; Alaska to California along the coast; also on the Atlantic Coast.
Habitat: Sub-tidal area.
Flowers: June-August
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Water
Monoecious, submersed, aquatic perennials from extensive rhizomes, the stems branching, up to 2 m. long.
Leaves alternate, linear, basally sheathing, up to 12 dm. long and 3-12 mm. broad, the sheaths closed.
Inflorescence 1-sided, 3-6 cm. long, the staminate and pistillate flowers alternating in two rows on the fleshy axis; each staminate flower a single, sessile anther, quickly detached; each pistillate flower a single, 2-carpellary pistil with 1 style and 2 stigmas.
:Utricle about 4 mm. long, beaked, rounded at the base.
Publication: Sp. Pl. 2: 968. 1753.
PNW Herbaria: Specimen records of Zostera marina in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Zostera marina checklist entry.
OregonFlora: Zostera marina information.
E-Flora BC: Zostera marina atlas page.
CalPhotos: Zostera marina photos.
USDA Plants: Zostera marina information.
