Page authors: Don Knoke, David Giblin
Lysimachia vulgaris
garden yellow-loosestrife

Distribution: Occurring in scattered localities on both sides of the Cascades in Washington; British Columbia to Oregon, east to Montana; widely distributed in eastern North America.

Habitat: Uncommon garden escape of moist areas, lake and pond margins, and riparian zones.

Flowers: June-August

Origin: Introduced from Europe

Growth Duration: Perennial

Conservation Status: Not of concern


Erect, downy-pubescent herbs, the flowering stems 3-10 dm. tall.


Leaves in whorls of 2-4, short-petiolate, broadly lanceolate, often black-dotted.


Flowers in axillary racemes, on long pedicels; calyx divided nearly to the base, the 5 lobes red-margined; corolla yellow, rotate, 15-20 mm. across; stamens 5, exerted, opposite the corolla lobes.


Capsule opening by valves.

Accepted Name:
Lysimachia vulgaris L.
Publication: Sp. Pl. 1: 146. 1753. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Lysimachia vulgaris checklist entry.

E-Flora BC: Lysimachia vulgaris atlas page.

CalPhotos: Lysimachia vulgaris photos.

USDA Plants: Lysimachia vulgaris information.

11 photographs:
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