Page authors: Don Knoke, David Giblin
Stellaria borealis
boreal starwort, boreal stitchwort
Specimens
Photos

Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, northern Great Plains, Great Lakes Region, and northeastern North America.

Habitat: Moist or marshy areas from low elevations to middle elevations in the mountains.

Flowers: May-August

Origin: Native

Conservation Status: Not of concern

Description:
General:

Low, glabrous, matted perennial, the slender stems prostate to erect, 1-4 dm. long.

Leaves:

Leaves opposite, sessile, entire, ovate to narrowly lanceolate, 10-50 mm. long and 3-10 times as long as broad.

Flowers:

Flowers axillary and in terminal leafy-bracteate cymes; pedicles slender, glabrous, 1-4 cm. long, erect to reflexed; sepals 5, distinct, lanceolate, acute, scarious-margined, 3-nerved, 2.5-4.5 mm. long; petals 5, white, deeply notched, from nearly as long as the sepals to wanting; stamens 10; styles 3.

Fruits:

Capsules narrowly ovoid, about twice as long as the sepals.

Accepted Name:
Stellaria borealis Bigelow
Publication: Fl. Boston., ed. 2. 182. 1824.

Synonyms & Misapplications:
(none provided)
Infraspecies:
ssp. borealis – boreal starwort   Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, northern Great Plains, Great Lakes Region, and northeastern North America.
ssp. sitchana – boreal starwort    Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and northern Great Plains.
Additional Resources:

PNW Herbaria: Specimen records of Stellaria borealis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Stellaria borealis checklist entry.

E-Flora BC: Stellaria borealis atlas page.

CalPhotos: Stellaria borealis photos.

USDA Plants: Stellaria borealis information.

18 photographs:
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