Page authors: Don Knoke, David Giblin
Phyllospadix scouleri
Scouler's surf-grass

Distribution: Occurring along the coast of Washington where rocky; Alaska to California.

Habitat: Rocky intertidal and sub-tidal zones.

Flowers: May-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Dioecious, submersed, aquatic perennials from extensive rhizomes, the stems mostly unbranched, flat, 0.5-4 dm. long.


Leaves alternate, linear, 5-15 dm. long and 2-4 mm. broad, sheathing at the base.


Both staminate and pistillate flowers in two rows on fleshy, one-sided spikes, the pistillate surrounded by a sheath; each staminate flower consists of a single, sessile anther, the inflorescence about 5-6 cm. long; each pistillate flower consists of a single, 2-carpellary pistil with 1 style and 2 stigmas, the inflorescence 2-4 cm. long.


Utricle 3-4 mm. long, sagittate at the base.

Accepted Name:
Phyllospadix scouleri Hook.
Publication: Flora Boreali-Americana. 2: 171. 1838. 1838.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Phyllospadix scouleri in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Phyllospadix scouleri checklist entry.

E-Flora BC: Phyllospadix scouleri atlas page.

CalPhotos: Phyllospadix scouleri photos.

USDA Plants: Phyllospadix scouleri information.

13 photographs:
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