Page authors: Don Knoke, David Giblin
Crassula tillaea
mossy stonecrop

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

Habitat: Disturbed areas, rock crevices, and sandy areas, often where seasonally wet or moist.

Flowers: March-April

Origin: Introduced from Europe

Growth Duration: Annual

Conservation Status: Not of concern


Annual, terrestrial herbs, the stems erect, red in age, simple or often branching, 1-6 cm. tall.


Leaves opposite, sessile, oblong, 1-3 mm. long, acute, tipped with a small, sharp point.


Inflorescences compact, crowded, the flowers 2 per node in the leaf axils; sepals 3, lanceolate, 1-1.5 mm. long, acuminate, tipped with a small, sharp point; petals 3, whitish, narrowly lanceolate, 0.5-1 mm. long, spreading; stamens 3.


Follicles ascending, ovoid, 2-seeded.

Accepted Name:
Crassula tillaea Lester-Garl.
Publication: Fl. Jersey. 87. 1903. 1903.

Synonyms & Misapplications:
Tillaea muscosa L.
Additional Resources:

PNW Herbaria: Specimen records of Crassula tillaea in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Crassula tillaea checklist entry.

E-Flora BC: Crassula tillaea atlas page.

CalPhotos: Crassula tillaea photos.

USDA Plants: Crassula tillaea information.

12 photographs:
Group by