Page authors: Don Knoke, David Giblin
Cardionema ramosissimum
sandcarpet, sandmat

Distribution: Occurring west of the Cascades crest along the coast in Washington; British Columbia to California.

Habitat: Sandy beaches along the coast.

Flowers: June-August

Origin: Native

Conservation Status: Not of concern


Prostrate, matted perennial, the stems up to 3 dm. long, pubescent, usually covered at the base with old, dead leaves and stipules.


Leaves opposite, linear with a needle-like tip, crowded, 5-10 mm. long; stipules conspicuous, about equal to the leaves.


Flowers inconspicuous, sessile, clustered in the upper leaf axils; calyx top-shaped, 5-cleft nearly to the base, 4-5 mm. long, the lobes hooded, unequal, each lobe with a divergent spine about the same length, the 3 larger sepals nearly enclosing the 2 smaller ones; petals 5, scale-like, fused basally with the 3-5 stamens to form a tube surrounding the base of the ovary, the petals about half as long as the larger sepals; style 1, short.


Utricle nearly as long as the calyx and enclosed within it.

Accepted Name:
Cardionema ramosissimum (Weinm.) A. Nelson & J.F. Macbr.
Publication: Bot. Gaz. 56: 473. 1913.

Synonyms & Misapplications:
Cardionema ramosissima (Weinm.) A. Nelson & J.F. Macbr., orthographic variant
Additional Resources:

PNW Herbaria: Specimen records of Cardionema ramosissimum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Cardionema ramosissimum checklist entry.

E-Flora BC: Cardionema ramosissimum atlas page.

CalPhotos: Cardionema ramosissimum photos.

USDA Plants: Cardionema ramosissimum information.

15 photographs:
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