New York Natural Heritage Program
Rock-cress
Draba arabisans Michx.
Dicots
Draba arabisans Stephen M. Young
Family: Mustard Family (Brassicaceae)

State Protection: Threatened
listed species are those with: 1) 6 to fewer than 20 extant sites, or 2) 1,000 to fewer than 3,000 individuals, or 3) restricted to not less than 4 or more than 7 U.S.G.S. 7 minute topographical maps, or 4) listed as threatened by U.S. Department of Interior.

Federal Protection: Not Listed

State Rarity Rank: S2
A State Rarity Rank of S2 means: This plant is threatened/imperiled in New York because of rarity (typically 6-20 populations or few remaining individuals) or is vulnerable to extirpation from New York due to biological factors.

Global Rarity Rank: G4
A Global Rarity Rank of G4 means: This species is apparently secure globally (typically with more than 100+ populations), though it may be quite rare in parts of its range, especially at the periphery.


Did you know?
Whitlow grass was the European name given to several inconspicuous wildflowers such as Saxifraga tridactylites, Draba verna and Paronychia which were thought to be a cure for the Whitlow. This is an infection of the end of the fingers and toes around the nail, as well as the hooves of animals, which caused painful inflammation. The genus Draba is from the Greek "drabe", meaning sharp or acrid, and refers to the burning taste of the leaves of these medicinal plants.

Draba arabisans may be told from its closest New York relative, Draba glabella, by its twisted fruit and longer styles.

State Ranking Justification [-]
There are only 12 verified locations, with many historical locations remaining to be checked. This species is relatively inconspicuous and may occupy inaccessible habitats, and therefore may be overlooked.

Short-term Trends [-]

Long-term Trends [-]