Burke: Zostera marina

	Zostera marina
	common eelgrass, seawrack
Habit	Monoecious, submersed, aquatic perennials from extensive rhizomes, the stems branching, up to 2 m. long.
Leaves	Leaves alternate, linear, basally sheathing, up to 12 dm. long and 3-12 mm. broad, the sheaths closed.
Flowers	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.

	Zostera marina
Identification notes	:Utricle about 4 mm. long, beaked, rounded at the base.
Flowering time	June-August
Habitat	Sub-tidal area.
Distribution	Occurring west of the Cascades crest in Washington\'s coastal counties; Alaska to California along the coast; also on the Atlantic Coast. [WildflowerSearch map] [BONAP county map]
Origin	Native
Conservation status	Not of concern
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Zostera marina

common eelgrass, seawrack

Habit

Monoecious, submersed, aquatic perennials from extensive rhizomes, the stems branching, up to 2 m. long.

Leaves

Leaves alternate, linear, basally sheathing, up to 12 dm. long and 3-12 mm. broad, the sheaths closed.

Flowers

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.