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

Tonestus lyallii (A. Gray) A. Nelson
Lyall's goldenweed
Asteraceae (Aster family)

Introduction to Vascular Plants

© Vanessa Robinson  Email the photographer   (Photo ID #87002)

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Distribution of Tonestus lyallii
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Species Information

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General:
Perennial herb from a poorly-developed taproot and branching, woody stem-base, often with creeping rhizomes as well; stems erect, several, simple, 3-15 cm tall.
Leaves:
Basal leaves oblanceolate to spoon-shaped or oblong, tufted, alternate, strongly glandular-hairy, 1.5-7 cm long, 4-12 mm wide; stem leaves similar, gradually reduced upwards.
Flowers:
Heads with ray and disk flowers, solitary; involucres 6-12 mm tall, bell-shaped; involucral bracts lanceolate, papery, sometimes leafy, subequal, glandular-hairy; ray flowers yellow, 13-35, 6-11 mm long; disk flowers yellow, 4-7 mm long.
Fruits:
Achenes elongate, 3-4 mm long, glabrous or softly-hairy; pappus of tawny hairlike bristles.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry meadows, rocky slopes and fellfields in the subalpine and alpine zones; common in S BC in and E of the Coast-Cascade Mountains; E to SW AB and S to NV and CA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Tonestus lyallii

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) 252 2198 2705
Slope Gradient (%) 0 27 74
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W] 		0 158 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric] 		0 2 6
Modal Nutrient Regime
Class		 B
Number of field plots
 species was recorded in:		 141
Modal BEC Zone Class
 AT
All BEC Zones (# of stations/zone) species was recorded in: AT(67), BAFA(5), ESSF(49), IMA(17), 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.

Synonyms and Alternate Names

Haplopappus lyallii A. Gray

Taxonomic and Nomenclatural Links

Flora North America treatment for Asteraceae
 Flora North America treatment for Tonestus lyallii
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: 2024-11-21 4:11:55 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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