Syn.: Coulteria didymocarpa (Hook.) Kuntze, Vesicaria didymocarpa Hook.
Family: Brassicaceae Burnett
Physaria didymocarpa
Distribution: Endemic to a limited part of North America. Found in Alberta and British Columbia and in Idaho, Montana, North Dakota, Washington and Wyoming.
Ecology: Dry, open foothills slopes, prairie grasslands and often on cliffs. Elevations from 1000 to 2000 m. Blooms in June and July.
Physaria didymocarpa
Description: Perennial herb. Stems 5–15 cm long, numerous, tufted, reclining, greyish green owing to dense silvery hairs, radiating from a woody crown. Basal leaves numerous, spatula-shaped, 2–8 cm long, 1–4 cm wide, stem leaves alternate, reduced in size upwards, surfaces covered in silvery, branched hairs. Inflorescence is a compact raceme, flowers yellow, 1–2 cm across, tetramerous, stamens 6, pistil 1. Fruit is a bladder-like silique with 2 lobes, about 2 cm across with 8 seeds.
Note: Blackfoot tribe used this plant to make medicinal tea to treat sore throats and cramps, and reduce swellings.
Physaria didymocarpa
Physaria didymocarpa
These images were taken in Canada, Alberta, Calgary, Bowmont Park (June 2012).