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

Lomatium ambiguum (Nutt.) J.M. Coult. & Rose
swale desert-parsley (Wyeth biscuitroot)
Apiaceae

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #13382)

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Distribution of Lomatium ambiguum
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Species Information

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General:
Stout, glabrous perennial herb from a globose thickened or necklace-like to elongate and slender taproot; stems 10-80 cm tall, erect, sometimes branching.
Leaves:
All basal, compoundly dissected, glabrous; ultimate segments of the leaves narrow and scarcely leaflike, less than 5 mm wide.
Flowers:
Inflorescence of compound umbels; flowers usually yellow or sometimes white, sometimes purple; involucels generally wanting.
Fruits:
Linear to narrowly oblong, mostly 3-8 times as long as wide (less than 4 mm wide), wings evident but narrow, less than 1/3 as wide as the body or obsolete.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry rocky slopes, grasslands and shrublands in the steppe and montane zones; frequent in S BC east of the Coast-Cascade Mountains, rare westward; S to WY, UT and OR.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Lomatium ambiguum

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

Minimum

Average

Maximum
Elevation (metres) 350 990 1858
Slope Gradient (%) 0 35 360
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W] 		14 173 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric] 		0 1 4
Modal Nutrient Regime
Class		 C
Number of field plots
 species was recorded in:		 99
Modal BEC Zone Class
 IDF
All BEC Zones (# of stations/zone) species was recorded in: BG(10), ESSF(7), ICH(4), IDF(42), MS(13), PP(22)

Climate

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

Peucedanum ambiguum (Nutt.) Nutt. ex Torr. & A. Gray

Taxonomic and Nomenclatural Links


Genetic information (NCBI Taxonomy Database)
 International Plant Names Index
 Taxonomic Information from the World Flora Online
 Integrated Taxonomic Information System

Additional Photo Sources

Images From CalPhoto
UT Austin's Native Plant Database
 Google Image Search
 Flickr Image Search

General References

Google Scholar Search
Family References
 General Botanical References for BC
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-12-02 12:30:12 PM ]
Disclaimer: The information contained in the E-Flora atlas pages is derived from expert sources as cited in each section. This information is scientifically based. E-Flora also acts as a portal to other sites via deep links. As always, users should refer to the original sources for complete information. E-Flora BC is not responsible for the accuracy or completeness of the original information.
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