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

Sisymbrium loeselii L.
Loesel's tumble-mustard (small tumbleweed mustard)
Brassicaceae (Mustard family)

Introduction to Vascular Plants

© Amelie Rousseau  Email the photographer   (Photo ID #6478)

E-Flora BC Static Map
Distribution of Sisymbrium loeselii
Click here to view our interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.

Annual herb from a taproot; stems erect, 0.4-1.2 m tall, freely branched, sparsely to densely hairy with spreading hairs or the hairs pointing backward, glabrous above.
Broadly deltoid-lanceolate to lanceolate, to 15 cm long, short-stalked, pinnately-cut, the segments pointing backwards, usually with large, long-pointed, terminal lobes irregularly saw-toothed to toothed.
Racemes to 40 cm long in fruit; petals lemon yellow, 6-8 mm long, broadly egg-shaped with long narrow claw; sepals about 3.5 mm long, lanceolate.
Siliques, ascending to erect but not appressed, straight or slightly arcuate, 2-3.5 cm long, round in cross section, segments prominently 3-nerved; beaks about 0.5 mm long; fruiting stalks spreading to ascending, 7-20 mm long, slender; seeds uniseriate, about 0.7 mm long, not gelatinous when wet.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry fields and waste places in the lowland, steppe and montane zones; frequent in S BC; introduced from Eurasia.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Sisymbrium loeselii

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) 311 646 1244
Slope Gradient (%) 0 11 63
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
12 227 270
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 3 6
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: BG(20), IDF(6), 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.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References