Page authors: David Giblin, Don Knoke
Lysimachia maritima
sea milkwort, sea-milkwort

Distribution: Chiefly west of the Cascades in Washington; circumboreal; Alaska to California, east to Newfoundland, south in eastern North America to Virginia.

Habitat: Coastal tideflats and saline areas.

Flowers: April-June

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Glabrous perennial herbs from slender rhizomes, the stems prostrate, decumbent to erect, simple or branched, 0.5-4 dm. long, somewhat succulent and glaucous.


Leaves sessile, opposite on the lower stem, becoming alternate and crowded upward; leaf blades narrowly lanceolate, elliptic or ovate, entire, 0.2-2.6 cm. long and 0.1-6 cm. wide, glabrous.


Flowers solitary and sessile in the leaf axils; sepals 5, 3-5 mm. long, the lobes ovate, somewhat succulent, with stalked glands; petals absent; stamens 5, the filaments distinct, slightly longer than the calyx.


Capsules 2.5-3.5 mm. long, glabrous.

Accepted Name:
Lysimachia maritima (L.) Galasso, Banfi & Soldano
Publication: Atti Soc. Ital. Sci. Nat. Mus. Civico Storia Nat. Milano. 146: 229. 2005. 2005.

Synonyms & Misapplications:
Glaucoides maritima (L.) Lunell
Glaux maritima L. [HC]
Glaux maritima L. var. angustifolia B. Boivin
Glaux maritima L. var. macrophylla B. Boivin
Glaux maritima L. var. obtusifolia Fernald
Additional Resources:

PNW Herbaria: Specimen records of Lysimachia maritima in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Lysimachia maritima checklist entry.

E-Flora BC: Lysimachia maritima atlas page.

CalPhotos: Lysimachia maritima photos.

USDA Plants: Lysimachia maritima information.

14 photographs:
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