E-Flora BC: Electronic Atlas of the Flora of British Columbia

Osmorhiza berteroi DC.
mountain sweet-cicely (sweetcicely)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #12102)

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Distribution of Osmorhiza berteroi
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Species Information

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Perennial herb from a well-developed taproot, sometimes below a slightly branched stem-base; stems solitary or sometimes 2-3, 0.3-1 m tall, branching.
Basal and stem twice divided into 3's, leaflets coarsely toothed, 2-9 cm long, 1-5.5 cm wide, more or less hairy, thin; basal leaves several with long stalks; stem leaves 1-3 with short stalks.
Inflorescence of loose compound umbels; flowers greenish-white, sometimes pink or purple, inconspicous; stalks short when flowering becoming longer at maturity; involucels lacking.
Linear-oblong, needle-like, 12-22 mm long, black, bristly hairy basally, narrowing to a beak, often catching on clothing or fur.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic open forests and forest margins in the lowland and montane zones; common throughout BC; N to AK, E to NF and S to SD, CO, AZ and CA, disjunct to S. America.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Osmorhiza berteroi

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 0 1044 2246
Slope Gradient (%) 0 17 145
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
0 196 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 4 8
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: BG(8), BWBS(202), CDF(47), CMA(1), CWH(376), ESSF(922), ICH(1180), IDF(695), IMA(1), MH(23), MS(686), PP(37), SBPS(68), SBS(1142), SWB(4)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Osmorhiza brevipes (J.M. Coult. & Rose) Suksd.
Osmorhiza chilensis Hook. & Arn.
Osmorhiza divaricata (Britton) Suksd.
Osmorhiza nuda Torr.
Washingtonia divaricata Britton

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References