Page authors: Ben Legler, David Giblin
Sabulina macra
slender sandwort, slender stitchwort

Distribution: Occurring west of the Cascades crest in Washington; British Columbia to Oregon.

Habitat: Lowlands, prairies and coastal bluffs.

Flowers: April-July

Origin: Native

Growth Duration: Annual, Perennial

Conservation Status: Not of concern


Annual from a taproot, the several stems erect to decumbent, 1-2.5 dm. tall, glandular-puberulent at least above.


Leaves opposite, linear but tapering, 3-nerved, 3-18 mm. long, the primary ones with bundles of secondary leaves or short branches in their axils.


Flowers many in an open, diffuse inflorescence that is often over half the length of the plant; pedicels very slender, up to 25 mm. long; sepals 5, lanceolate, pointed, 3-nerved, 2.5-3.5 mm. long; petals 5, white, broadly obovate, up to 11/2 times as long as the sepals; stamens 10; styles 3.


Capsule ovoid, longer than the sepals, opening by 3 valves.

Accepted Name:
Sabulina macra (A. Nelson & J.F. Macbr.) Dillenb. & Kadereit
Publication: Taxon 63(1): 86. 2014.

Synonyms & Misapplications:
Alsinopsis tenella (J. Gay) A. Heller
Arenaria macra A. Nelson & J.F. Macbr.
Arenaria stricta Michx. [HC]
Arenaria stricta Michx. ssp. macra (A. Nelson & J.F. Macbr.) Maguire
Arenaria stricta Michx. var. puberulenta (M. Peck) C.L. Hitchc. [HC]
Greniera tenella J. Gay
Minuartia tenella (J. Gay) Mattf. [FNA5]
Additional Resources:

PNW Herbaria: Specimen records of Sabulina macra in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Sabulina macra checklist entry.

OregonFlora: Sabulina macra information.

E-Flora BC: Sabulina macra atlas page.

CalPhotos: Sabulina macra photos.

USDA Plants: Sabulina macra information.

16 photographs:
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