Photo at right: Arabis
microphylla var. microphylla leaf. Note the tiny 3-pronged (trifurcate)
hairs covering the leaf.
1. Pink to purple flowers are 4-petaled (5-8 mm in length).
2. Flowers are located in a tight raceme, or occasionally on the outer half of the stem.
3. Stems are frequently erect, with several thin stem leaves.
4. The basal leaves form a tight central clump, The leaves are long and thin in shape.
5. The seed pods are long thin siliques. In variety microphylla, the siliques usually number less than 6, and these are often recurved or pendent.
Little-leaf rock cress may be found on rocky cliffs and outcrops.
Little-leaf rock cress may be found from British Columbia south to north central and northeastern Oregon, east to Montana and Wyoming.
In the Columbia River Gorge, it is found between the elevations of 100'-400' from about Cape Horn to about Horsethief Butte.
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