Page authors: Don Knoke, David Giblin
Lysimachia arvensis
scarlet pimpernel

Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; British Columbia to California, east across much of North America to the Atlantic Coast.

Habitat: Roadsides, fields, wastelots, and other disturbed, open areas.

Flowers: May-June

Origin: Introduced from Eurasia

Growth Duration: Annual, Biennial

Conservation Status: Not of concern

Pollination: Bees, flies


Low annual with several glabrous, prostrate or ascending stems 1-4 dm. long.


Leaves opposite, ovate, entire, 5-15 mm. long, sessile and somewhat clasping.


Flowers usually in pairs, axillary on filiform, curved pedicels 1-4 cm. long; sepals 5, linear-lanceolate, acuminate, 2-4 mm. long, nearly distinct; corolla rotate, salmon-colored, 5-8 mm. broad, the 5 lobes broadly obovate with fine hairs on the margins; stamens 5, equal to and opposite the corolla lobes, inserted on the tube.


Capsule spherical, 3-5 mm. broad.

Accepted Name:
Lysimachia arvensis (L.) U. Manns & Anderb.
Publication: Willdenowia 39(1): 51. 2009.

Synonyms & Misapplications:
Anagallis arvensis L. [FNA8, HC]
Anagallis arvensis L. ssp. arvensis
Anagallis arvensis L. var. caerulea (L.) Gouan
Anagallis caerulea L.
Additional Resources:

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

WA Flora Checklist: Lysimachia arvensis checklist entry

OregonFlora: Lysimachia arvensis information

E-Flora BC: Lysimachia arvensis atlas page

CalPhotos: Lysimachia arvensis photos

41 photographs:
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