Slender, erect plant with a rosette of basal leaves. Stem leaves
alternate, clasping, oblanceolate to lanceolate, the one photographed
above was 20 mm long and 5 mm wide. Basal leaves are entire, oval,
the one highlighted in photograph above was 25 mm long (including
petiole) and 7 mm wide. Stem with some purple colouring. Upper
stem glabrous, lower stem and leaves starry hairy. Flowers are
small, with 4 petals, light purple when opening, white when fully
open. Flowers were measured at 5 mm in diameter.
The Taxonomic Reminder for Identifying Saskatchewan Plants
says to look at the position of the pods to identify this species
of Arabis. The pods are spread apart, some ascending, some
descending.
Common on prairie and hillsides in southern Saskatchewan.
Height listed in Budd's Flora from 30 to 50 cm, plants in photo were 22 and 32 cm tall.
The above photos were taken May 7th, grassy slope and prairie, Buffalo Grass Eco Reserve, about 200 km southeast of our home in Regina, SK.
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