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

Galium bifolium S. Watson
thin-leaved bedstraw (twinleaf bedstraw)
Rubiaceae (Madder family)

Introduction to Vascular Plants

© Ryan Batten  Email the photographer   (Photo ID #66968)

E-Flora BC Static Map
Distribution of Galium bifolium
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Species Information

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General:
Annual herb from a taproot; stems erect, solitary, simple or slightly branched, round, smooth, 5-20 cm tall.
Leaves:
Basal leaves few, soon deciduous; stem leaves in whorls of 4, with one pair smaller, upper leaves sometimes opposite, lanceolate to linear-elliptic, larger leaf pairs 1-2 cm long, smooth, 1-veined, entire, unstalked.
Flowers:
Inflorescence of solitary, stalked, axillary flowers; corollas white, cup-shaped, 3.5-7 mm wide, 3-lobed, soon deciduous; calyces obsolete.
Fruits:
Nutlets, 2, 2.5-3.5 mm long, with numerous, short, hooked hairs.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to dry sites in the steppe and montane zones; infrequent throughout S BC; E to SW AB and S to CO and CA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Galium bifolium

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) 820 1143 1627
Slope Gradient (%) 0 19 70
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
77 140 215
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 4 7
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
6
Modal BEC Zone Class
IDF
All BEC Zones (# of stations/zone) species was recorded in: BWBS(1), ESSF(1), IDF(3), SBS(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

Additional Photo Sources

General References