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

Senecio eremophilus Richardson
Desert Ragwort (dryland ragwort; Elmer's Butterweed)
Asteraceae (Aster family)

Introduction to Vascular Plants

© Adolf Ceska  Email the photographer   (Photo ID #5679)

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

Species Information

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General:
Perennial herb from a short, poorly developed taproot; stems erect, mostly solitary, branched above, 0.3-1.2 m tall, glabrous.
Leaves:
Basal leaves soon deciduous; stem leaves lanceolate to oblanceolate, stalked, 4-15 cm long including the stalk, 1-4 cm wide, coarsely deeply-toothed to deeply pinnately cut, glabrous or nearly so; stem leaves reduced and becoming unstalked upwards.
Flowers:
Heads with ray and disk flowers, several to numerous in a flat-topped to rounded inflorescence; involucres 7-9 mm tall; involucral bracts lanceolate with long-pointed tips, inconspicuously black-tipped; bracteoles few, inconspicuously black-tipped; ray flowers yellow, mostly 6-10 mm long; disk flowers yellow.
Fruits:
Achenes oblong, ribbed, glabrous; pappus of white hairlike bristles.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry forests in the steppe and montane zones; frequent in C and NE BC, restricted to the Fraser and Peace River drainages; E to ON and S to NE, AZ and NM.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Senecio eremophilus

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) 1160 1302 1444
Slope Gradient (%) 5 10 15
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W] 		174 174 174
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric] 		4 4 5
Modal Nutrient Regime
Class		 D
Number of field plots
 species was recorded in:		 2
Modal BEC Zone Class
 MS
All BEC Zones (# of stations/zone) species was recorded in: MS(1)

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 eremophilus
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: 2024-05-16 9:15:38 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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