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

Packera indecora (Greene) Á. Löve & D. Löve
rayless mountain butterweed
Asteraceae (Aster family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #10733)

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Distribution of Packera indecora
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Species Information

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Perennial herb from a fibrous-rooted, simple or slightly branched woody stem-base; stems erect, solitary or few, branched above, glabrous, 0.1-1 m tall.
Basal leaves lanceolate to elliptic to broadly egg-shaped, stalked, 1.5-12 cm long including the stalk, 0.5-5 cm wide, toothed, glabrous or lightly woolly-hairy when young; stem leaves lanceolate, sharply incised, pinnately cut and irregularly lobed, glabrous, reduced upwards, becoming unstalked.
Heads discoid, few to numerous in a round-topped inflorescence; involucres 7-11 mm tall; involucral bracts linear-lanceolate, purplish-tipped or purplish throughout, glabrous or sparsely woolly-hairy; bracteoles few, inconspicuous; discoid or rarely short and yellow; disk flowers yellow.
Achenes oblong, faintly ribbed, glabrous; pappus of white hairlike bristles.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist forests, bogs, fens and streambanks in the steppe and montane zones; common throughout BC in and E of the Coast-Cascade Mountains; N to AK, YT and NT, E to PQ and NS, and S to WY and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Packera indecora

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 1169 1994
Slope Gradient (%) 0 9 120
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
40 166 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 5 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: BAFA(2), BG(1), BWBS(6), CWH(2), ESSF(12), ICH(3), IDF(8), MS(14), SBPS(11), SBS(11), SWB(1)


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

Senecio indecorus Greene
Senecio pauciflorus var. fallax (Greenm.) Greenm.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References