New York Natural Heritage Program
Northern Tansy-mustard
Descurainia pinnata ssp. brachycarpa (Richards.) Detling
Descurainia pinnata Todd Stout
Family: Mustard Family (Brassicaceae)

State Protection: Endangered
listed species are those with: 1) 5 or fewer extant sites, or 2) fewer than 1,000 individuals, or 3) restricted to fewer than 4 U.S.G.S. 7 minute topographical maps, or 4) species listed as endangered by U.S. Department of Interior.

Federal Protection: Not Listed

State Rarity Rank: S1
A State Rarity Rank of S1 means: This plant is endangered/critically imperiled in New York because of extreme rarity (typically 5 or fewer populations or very few remaining individuals) or is extremely vulnerable to extirpation from New York due to biological factors.

Global Rarity Rank: G5T5
A Global Rarity Rank of G5T5 means: Secure globally - Both the species as a whole and the subspecies/variety are common in the world; widespread and abundant (but may be rare in some parts of its range).

Did you know?
The genus is named for 18th century French botanist and physician/pharmacist Francois Descourain (1658-1740) (Botanary). The species name means short fruit but this variety has fruit that averages two millimeters LONGER than the species (7 vs. 9 mm) (Gleason and Cronquist 1981).

State Ranking Justification [-]
There are 2 verified occurrences, 5 historical occurrences.

Short-term Trends [-]

Long-term Trends [-]