Sea Arrowgrass

Triglochin maritima L. Sp. PL 338. 1753
Triglochin elaia Nutt, Gen. 1 : 237. 1818.
Triglochin maritima elata A. Gray, Man. ed. 2. 437. 1856.
Triglochin maritima debilis M. K. Jones, Proc. Calif. Acad. II. 5 : 723. 1895.
Triglochin concinna Davy, Erythea 3 : 117. 1895.
Rootstock without stolons, often subligneous, the caudex thick, mostly covered with the sheaths of old leaves. Scape stout, nearly terete, 0.1-0.7 m. high ; leaves half-cylindric, usually about 2 mm. wide ; raceme elongate, often 0.4 m. long or more ; pedicels decurrent, 2-3 mm. long, slightly longer in fruit; perianth-segments 6, each subtending a large sessile anther; pistil of 6 united carpels; fruit oblong or ovoid, 5-6 mm. long, 2-4 mm. thick, obtuse at the base, with 6 recurved tips at the summit; carpels 3-angled, flat or slightly grooved on the back, or the dorsal edges curving upward and winged, separating at maturity from the hexagonal axis.
Type locality : Europe.
Distribution : Labrador to Alaska, south to New Jersey, western New York, Ohio, Wisconsin, Nebraska, New Mexico, California, northern Mexico, and Lower California ; also in Europe and Asia.