Chorispora tenella (Pall.) DC.
blue mustard (crossflower)
Brassicaceae (Mustard family)

Introduction to Vascular Plants

Photograph

© Jeremy Gatten     (Photo ID #9470)


Map

E-Flora BC Static Map

Distribution of Chorispora tenella
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Species Information

General:
Annual herb from a taproot; stems 10-50 cm tall, branched from near base, stalked-glandular and often sparsely stiff-hairy.
Leaves:
Basal and lower stem leaves stalked, wavy-toothed to pinnately lobed, 3-8 cm long, elliptic-oblong to lanceolate or oblanceolate; upper stem leaves similar, reduced, unstalked, toothed to entire.
Flowers:
Racemes elongate, the lower flowers from the axils of slightly reduced leaves, the raceme mostly bractless; flower stalks ascending, 2-4 mm long, stout; petals magenta, with narrow, stalklike bases that slightly exceed the sepals, the narrowly oblong blades spreading, 5 mm long; sepals erect, 6-8 mm long, free but forming a tube.
Fruits:
Siliques, spreading to ascending, 35-45 mm long, often upcurved; beak 7-20 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

Dry roadsides and waste places in the steppe zone; frequent in SC BC; introduced from Eurasia.

SourceThe Illustrated Flora of British Columbia