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

Geranium bicknellii Britton
Bicknell's geranium (Bicknell's crane's-bill)
Geraniaceae (Geranium family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #29605)

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Distribution of Geranium bicknellii
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Species Information

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General:
Annual to biennial herb from a taproot; stems decumbent to erect, much-branched, spreading-hairy, often glandular above, 5-60 cm tall.
Leaves:
Basal leaves few, reduced and soon deciduous; stem leaves opposite, triangular to rounded in outline, 2-7 cm wide, palmately divided into 5 segments, these cleft or toothed 1/2 their length, hairy.
Flowers:
Inflorescence of 2 flowers per stalk, the stalk axillary or terminal and 1.5 to 3 times the length of the sepals; petals pink, 4-8 mm long, notched at the tip; sepals equal to the petals, bristle-tipped, the tips 1-2 mm long; stamens 10, fertile, not fused.
Fruits:
Carpels, hairy, not wrinkled; styles 1.6-1.9 cm long, the beak 4-5 mm long; seeds oblong, net-veined and pitted.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to mesic forest openings, recent burns and seepage areas in the lowland, steppe and montane zones; frequent in BC east of the Coast-Cascade Mountains, common on SE Vancouver Island and the Gulf Islands, infrequent in the lower Fraser Valley, absent elsewhere on the coast; N to AK, YT and NT, E to NF and S to IO, IN, CO, UT and N CA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Geranium bicknellii

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) 25 882 1639
Slope Gradient (%) 0 27 136
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
7 191 350
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 3 5
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
104
Modal BEC Zone Class
SBS
All BEC Zones (# of stations/zone) species was recorded in: BWBS(3), CDF(1), CWH(1), ESSF(1), ICH(2), IDF(7), MS(1), SBS(50), SWB(2)

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 montane boreal & cool temperate.

Synonyms and Alternate Names

Geranium bicknellii var. longipes (S. Watson) Fernald
Geranium carolinianum var. longipes S. Watson
Geranium nemorale Suksd.
Geranium nemorale var. bicknellii (Britton) Fernald

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References