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

Senecio fremontii Torr. & A. Gray
Fremont's Ragwort (dwarf mountain butterweed; dwarf mountain ragwort)
Asteraceae (Aster family)

Introduction to Vascular Plants

© Ed McMackin  Email the photographer   (Photo ID #89321)

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Distribution of Senecio fremontii
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SUBTAXA PRESENT IN BC
Senecio fremontii var. fremontii

Species Information

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General:
Perennial herb from a taproot and a branching, woody stem-base; stems ascending to prostrate, several, branched, glabrous, 10-20 cm tall.
Leaves:
Basal leaves few and soon deciduous; stem leaves thickish, somewhat succulent, egg-shaped to spoon-shaped or oblanceolate, regularly to irregularly toothed, stalked, 1-4 cm long including the stalk, 0.2-2 cm wide, upper leaves slightly reduced and becoming unstalked, glabrous.
Flowers:
Heads with ray and disk flowers, numerous at the ends of branches, bases crisp-hairy; involucres 7-12 mm tall; involucral bracts lanceolate, with long-pointed tips, inconspicuously soft-hairy; bracteoles few, inconspicuous; rays yellow, 6-10 mm long; disk flowers yellow.
Fruits:
Achenes oblong, nerved, glabrous; pappus of white hairlike bristles.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to mesic talus and scree slopes in the alpine zone; frequent in S BC in and E of the Coast-Cascade Mountains; E to SW AB and S to CO and CA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Senecio fremontii

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) 1870 2265 2659
Slope Gradient (%) 10 48 101
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W] 		20 118 300
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric] 		1 2 6
Modal Nutrient Regime
Class		 B
Number of field plots
 species was recorded in:		 25
Modal BEC Zone Class
 AT
All BEC Zones (# of stations/zone) species was recorded in: AT(11), BAFA(2), ESSF(9), IMA(3)

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.

Taxonomic and Nomenclatural Links

Flora North America treatment for Asteraceae
 Flora North America treatment for Senecio fremontii
Genetic information (NCBI Taxonomy Database)
 International Plant Names Index
 Taxonomic Information from the World Flora Online
 Integrated Taxonomic Information System

Additional Photo Sources

UBC Herbarium Scanned Collection Record
 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: 2024-11-27 2:05:43 PM ]
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