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

Trollius albiflorus (A. Gray) Rydb.
Ranunculaceae (Buttercup family)

Introduction to Vascular Plants

© Bryan Kelly-McArthur  Email the photographer   (Photo ID #71039)

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Distribution of Trollius albiflorus
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Species Information

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Perennial herb from short stem-base and strong, fibrous roots; stems 1 to several, erect, 10-50 cm tall, the base with some persistent stalks from previous years; plants smooth.
Basal leaves deeply palmately divided into (3) 5 to 7 segments, the segments egg-shaped, somewhat 3-lobed, coarsely-toothed and often incised, the stalks 4-25 cm long, with wide, membranous stipules; stem leaves 1 to 3, alternate, short-stalked to unstalked, with wide, clasping, membranous sheaths.
Inflorescence usually solitary and terminal, the flowers 2.5-5 cm wide; flower stalks erect, 2-30 cm long; petals 15 to 25, yellow, 3-6 mm long, concealed under the longer stamens; sepals 5 to 9, spreading, white when fresh, pale yellow to greenish-white before flower opening, egg-shaped to nearly circular, 10-20 mm long.
Follicles, usually 11 to 14, 8-16 mm long (including beak), the beaks often curved, sometimes straight; seeds black or dark brown.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Wet to moist meadows and streambanks in the subalpine and alpine zones; common in S BC in and E of the Coast-Cascade Mountains and south of 55degreeN; E to SW AB and S to CO, UT, ID and WA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Trollius albiflorus

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) 16 1724 2500
Slope Gradient (%) 0 13 132
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
0 348 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 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: AT(24), BAFA(9), CWH(1), ESSF(905), ICH(21), IDF(5), IMA(11), MH(3), MS(47), SBS(1), SWB(6)


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

Trollius laxus Salisb.
Trollius laxus subsp. albiflorus (A. Gray) Á. Löve & D. Löve & Kapoor

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References