Mat-forming mostly hairy perennial. Leaves with 2-5 blunt teeth on each side, greyish with star-shaped hairs; upper leaves stem clasping. Flowers white to pinkish purple; spring. Fruit mostly more than 4 cm long. [A. albida M. Bieb.]
Available as a range of cultivars.
Widely naturalised in the northern hemisphere.
This species is sometimes confused with the smaller and less frequently grown A. alpina L., Mountain Rock Cress or Alpine Rock Cress from Europe and N America.
Source: (1997). Brassicaceae. In: . Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.