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

Physaria didymocarpa subsp. didymocarpa
common twinpod
Brassicaceae (Mustard family)

Introduction to Vascular Plants
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E-Flora BC Static Map
Distribution of Physaria didymocarpa subsp. didymocarpa
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Species Information

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Tufted perennial from a heavy-rooted, often branched stem-base; stems numerous, decumbent, 2-17 cm long, with silvery starlike hairs, these not closely appressed.
Basal leaves numerous, in a rosette, withering and persistent, 2-8 cm long, blades egg-shaped, mostly obtuse, with few inconspicuous teeth or toothed, rarely entire, with narrow to wide winged stalks, these about as long as the blades, silvery; stem leaves several, reduced, oblanceolate, entire or with occasional tooth.
Racemes congested, elongating in fruit; flower stalks spreading, straight or slightly curved, 8-12 mm long; petals yellow, 9-12 mm long, broadly spoon-shaped or egg-shaped.
Silicles, paired, much-inflated, 1-2 cm long, at least as wide, base very slightly heart-shaped, apical sinus narrow, nearly closed, 2-4 mm deep, loosely hairy with rays of hairs spreading; beaks 6-9 mm long; seeds 2-3 per chamber.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry grasslands, shrublands and rocky slopes in the montane to alpine zones; rare in SE BC; E to SW AB and S to WA, ID, and WY.

Source: The Illustrated Flora of British Columbia

Synonyms and Alternate Names

Physaria didymocarpa (Hook.) A. Gray

Taxonomic and Nomenclatural Links

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General References