New York Natural Heritage Program
Orange Milkwort
Polygala lutea L.
Dicots
Polygala lutea flower head Stephen M. Young
Family: Milkwort Family (Polygalaceae)

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: G5
A Global Rarity Rank of G5 means: This species is demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.


Did you know?
The species name of this orange-flowered wildflower means yellow because when it is dried as a specimen the flowers turn yellow. Linnaeus saw the yellow flowers when he named it from dried specimens.

State Ranking Justification [-]
There are three existing populations but two of them are small. The largest population has over 1000 plants. There are four historical populations known from the early 1900s which need to be resurveyed. Two other populations were extirpated when their habitat was destroyed.

Short-term Trends [-]

Long-term Trends [-]