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

Leptosiphon septentrionalis (H. Mason) J.M. Porter & L.A. Johnson
northern linanthus (northern flaxflower)
Polemoniaceae (Phlox family)

Introduction to Vascular Plants

© Ryan Batten  Email the photographer   (Photo ID #25834)

E-Flora BC Static Map
Distribution of Leptosiphon septentrionalis
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Species Information

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Annual herb from a taproot; stems often branched, hairless or minutely hairy in part, 5-25 cm tall.
Opposite, unstalked, palmately cleft into 3 to 7 segments 5-20 mm long, or the uppermost leaves entire, the segments thread-like, fringed with bristly hairs; leaves of the inflorescence longer than those below and more densely fringed.
Inflorescence an open, branching, terminal cluster of flowers solitary on long thread-like stalks in the forks and at the ends of the branches; corollas white, lavender or pale blue, yellow in the throats, 2.5-6 mm long, about 1.5 times as long as the calyx, the short funnel-shaped tube spreading to five lobes and with a ring of short hairs in the throat; calyces 1-3 mm long, the 5 teeth lance-triangular.
Capsules, 3-chambered; seeds 2 to 8 per chamber, swelling and becoming sticky when moistened.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry slopes, meadows, sagebrush flats and forest openings in the steppe and montane zones; rare in SC and SE BC; E to SK and S to WY, CO and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Leptosiphon septentrionalis

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) 838 1373 1880
Slope Gradient (%) 8 41 70
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
100 208 238
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 2 4
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: ESSF(4), IDF(2), MS(3), PP(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

Gilia septentrionalis (H. Mason) H. St. John
Linanthus harknessii var. septentrionalis (H. Mason) Jeps. & V. Bailey
Linanthus septentrionalis H. Mason

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References