E-Flora BC: Electronic Atlas of the Flora of British Columbia

Phyllospadix torreyi S. Watson
Torrey's surf-grass
Potamogetonaceae (Horned pondweed family)

Introduction to Vascular Plants

© Michael Hawkes  Email the photographer   (Photo ID #17080)

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Distribution of Phyllospadix torreyi
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Species Information

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Perennial, aquatic herb from slender rhizomes; stems annual, usually branched, 40-120 cm long, 0.5-2 mm wide.
Tufted at the rhizome nodes, becoming folded or cylindric, 3- (5-) veined, margins entire, (30) 50-150 long, 1-1.5 (2) mm wide.
Inflorescence of stalked spikes of male and female flowers on different plants; female spikes 3-7 per stem, 1-sided, 4 (5) cm long; male spikes 5-6 cm long.
Nutlets, 3-4 mm long, base with 2 downward projecting, hornlike lobes.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Exposed, rocky, intertidal to subtidal coastal shores; infrequent along the coast south of 51 degrees N; S to MX.

Source: The Illustrated Flora of British Columbia


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References