Page authors: Don Knoke, David Giblin
Sedum stenopetalum
wormleaf stonecrop

Distribution: Occurring chiefly east of the Cascade crest in Washington; British Columbia south to California, east to the northern Rocky Mountains.

Habitat: Grasslands and ponderosa pine forests to sub-alpine ridges, on dry, gravelly benches, rock crevices and talus.

Flowers: May-July

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Glabrous perennial herbs from rhizomes, with numerous sterile shoots, the flowering stems erect to ascending, up to 2 dm. tall.


Leaves alternate, linear or narrowly linear-lanceolate, keeled or nerved, narrowly tapered to a sharp tip, 5-15 mm. long, deciduous by flowering, except the decumbent branches have many leaves persistent, sometimes only the mid-ribs remaining; upper cauline leaves sometimes persistent and bearing bulblet-like structures.


Flowers in compact cymes; sepals 5, lanceolate, 2 mm. long; petals 5, yellow, 6-8 mm. long, spreading, lanceolate, acuminate and ending in a sharp point; stamens 10, 1.5-2.5 mm. shorter than the petals, 5 attached to the base of the petals. Occasionally some or all of the flowers are reduced to bulblets.


Follicles 5, widely divergent.

Accepted Name:
Sedum stenopetalum Pursh
Publication: Fl. Amer. Sept. 1: 324. 1813.

Synonyms & Misapplications:
Amerosedum stenopetalum (Pursh) Á. Löve & D. Löve
Sedum douglasii Hook.
ssp. stenopetalum – wormleaf stonecrop    British Columbia to California, east to Wyoming; uncommon in the Olympic Mountains and the Willamette Valley
Additional Resources:

PNW Herbaria: Specimen records of Sedum stenopetalum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Sedum stenopetalum checklist entry.

E-Flora BC: Sedum stenopetalum atlas page.

CalPhotos: Sedum stenopetalum photos.

USDA Plants: Sedum stenopetalum information.

55 photographs:
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