|Braun's rock-cress, Nevada rockcress, prairie rock-cress, small rock-cress|
|Kimberlie McCue, Ph.D.|
The following Participating Institutions are custodians for this species in the CPC National Collection:
Missouri Botanical Garden
The conservation of Arabis perstellata is fully sponsored.
Kimberlie McCue, Ph.D. contributed to this Plant Profile.
Arabis perstellata was named by E. L. Braun from plants collected between 1936 and 1939 on wooded hillsides along Elkhorn Creek in Franklin County, Kentucky. The plant is distinguished from other Arabis by the stellate (star-shaped) hairs on its stems and leaves. Braun's rockcress flowers from late March to early May, showing petals that range in color from white to lavender (Rollins 1960).
Distribution & Occurrence
A. perstellata occurs on the slopes of calcareous mesophytic and sub-xeric forest types. It is sun intolerant and always occurs in at least partial shade. Plants are often found around rock outcrops, protected sites at the downslope side of tree bases, and sites of natural disturbance, such as talus slopes and animal trails. It is rarely found growing among the continuous herbaceous cover of the forest floor (USFWS 1995, 1997).
Species associated with A. perstellata: Saxifraga viriniensis, Sedum pulchellum, Arabis laevigata, Asplenium rhizophyllum (Jones 1991)
|25 populations; known from two separate sections of the Interior Low Plateaus, Blue Grass Section (Kentucky), and Central Basin Section (Tennessee) (USFWS 1997).|
Conservation, Ecology & Research
determining optimal habitat conditions, developing a site management strategy, developing a public education plan.
Braun, E.L. 1940. New plants from Kentucky. Rhodora. 42: 47-49.
Rollins, R.C. 1960. Arabis perstellata in Tennessee. Rhodora. 62: 242-244.
USFWS. 1995. Determination of endangered status for Arabis perstellata. Federal Register. 60, 1: 56-61.