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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Osmorhiza occidentalis

Osmorhiza occidentalis (Nutt. ex Torr. & A. Gray) Torr.

Western Sweetroot, Western Sweet Cicely, Mountain Sweet Cicely, Sierran Sweet-cicely, Sweetanise

Apiaceae (Carrot family)

Synonym(s): Glycosma occidentalis, Osmorhiza ambigua


USDA Native Status: L48 (N), CAN (N)


From the Image Gallery

No images of this plant

Plant Characteristics

Duration: Perennial
Habit: Herb
Fruit Type: Schizocarp
Size Notes: Up to about 4 feet tall.

Bloom Information

Bloom Color: Yellow
Bloom Time: Mar , Apr , May , Jun , Jul


USA: CA , CO , ID , MT , NV , OR , UT , WA , WY
Canada: AB , BC
Native Habitat: Forest and woodland openings and edges, thickets, riparian zones, low to middle elevations.

Web Reference

Webref 62 - Burke Herbarium Image Collection (2020) University of Washington
Webref 30 - Calflora (2018) Calflora
Webref 36 - Jepson eFlora (2019) The Jepson Herbarium, University of California, Berkeley
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Osmorhiza occidentalis in USDA Plants
FNA: Find Osmorhiza occidentalis in the Flora of North America (if available)
Google: Search Google for Osmorhiza occidentalis


Record Modified: 2021-02-16
Research By: CBR

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