Page author: David Giblin
Lysimachia latifolia
broad-leaved starflower, western starflower

Distribution: Occurring on both sides of the Cascades crest in Washington; southern British Columbia to California, east to northern Idaho.

Habitat: Prairies, woodlands, and forest openings from low to middle elevations in the mountains.

Flowers: April-July

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies


Perennial herbs from slender rootstocks and tubers, the tubers usually erect, 1-2 cm. long and up to 6 mm. thick; flowering stems 1-2.5 dm. tall.


Leaves 4-8 in a terminal whorl, broadly ovate-elliptic to obovate, 3-10 cm. long and 1.5-4 cm. broad.


Flowers axillary from 1 or more leaf axils, on long, slender, curved pedicels; calyx parted to near the base, the 6 or 7 lobes linear-lanceolate; corolla pinkish to rose, rotate, divided nearly to the base, the lobes the same number as the calyx, broadly ovate; stamens opposite the corolla lobes, exerted, the filaments glabrous, slender, considerably longer than the anthers.


Capsule opening by valves.

Identification Notes:

Trientalis europeae has a few stem leaves; Trientalis borealis has none.

Accepted Name:
Lysimachia latifolia (Hook.) Cholewa
Publication: Phytoneuron 2014-28: 1. 2014.

Synonyms & Misapplications:
Alsinanthemum europaeum (L.) Greene var. latifolium (Hook.) Greene
Trientalis borealis Raf. ssp. latifolia (Hook.) Hultén [IFBC]
Trientalis europaea L. var. latifolia (Hook.) Torr.
Trientalis latifolia Hook. [FNA8, HC]
Additional Resources:

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

WA Flora Checklist: Lysimachia latifolia checklist entry.

OregonFlora: Lysimachia latifolia information.

E-Flora BC: Lysimachia latifolia atlas page.

CalPhotos: Lysimachia latifolia photos.

USDA Plants: Lysimachia latifolia information.

27 photographs:
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