New York Natural Heritage Program
Leedy's Roseroot
Rhodiola integrifolia ssp. leedyi (Rosendahl & Moore) Kartesz
Dicots
Stephen M. Young
Family: Stonecrop Family (Crassulaceae)

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: Threatened
Listed as Threatened in the United States by the US Department of Interior.


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: G5T1
A Global Rarity Rank of G5T1 means: Critically Imperiled globally - The subspecies/variety is at very high risk of extinction due to extreme rarity or other factors; typically 5 or fewer populations or locations in the world, very few individuals, very restricted range, very few remaining acres (or miles of stream), and/or very steep declines. (The species as a whole is common globally.)


Did you know?
Leedy's roseroot was first collected at Watkins Glen collected in 1918 by L. F. Randolph, a botanist from Cornell University. He didn't say how many plants he saw there but he described its location as the same place where only one plant was rediscovered in 1991. That single plant continues to hang on today.

State Ranking Justification [-]
There are three existing populations, of which two are small and one is very large. There are no other known historical populations.

Short-term Trends [-]

Long-term Trends [-]