Sisymbrium orientale L.
eastern tumble-mustard (eastern tumble-mustard)
Brassicaceae (Mustard family)

Introduction to Vascular Plants

Photograph

Once images have been obtained, photographs of this taxon will be displayed in this window.Click on the image to enter our photo gallery.
Currently no image is available for this taxon.


Map

E-Flora BC Static Map

Distribution of Sisymbrium orientale
Click here to view the full interactive map and legend

Species Information

General:
Annual herb from a taproot; stems erect, 10-30 cm tall, branched, short soft-hairy.
Leaves:
Basal leaves clustered, withering before flowering, deeply pinnately lobed or compound, long-stalked with large terminal lobe and about 4 pairs of broadly triangular lateral lobes; stem leaves with linear, arrowhead-shaped terminal lobe and fewer and smaller lateral lobes; upper stem leaves more or less entire or with lobes or leaflets lanceolate to triangular.
Flowers:
Inflorescences much elongating in fruit; petals pale yellow, 8-10 mm long, twice length of sepals.
Fruits:
Siliques, 3-10 cm long, 1-2 mm wide, straight, round in cross section, stiff-hairy becoming glabrous at maturity; segments 3-nerved; fruiting stalks ascending to erect, 3-6 mm long, stout, about as thick as the silique; beaks 1-3 mm long, club-shaped; seeds yellowish-brown, uniseriate, narrowly egg-shaped, about 0.9 mm long.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Habitat and Range

Mesic to dry fields, roadsides and waste places; rare in SW BC, known only from Vancouver; introduced from Eurasia.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Brassica kaber var. orientalis (L.) Scoggan