New York Natural Heritage Program
Clustered Bluets
Oldenlandia uniflora L.
Oldenlandia close-up Kimberly J. Smith
Family: Madder Family (Rubiaceae)

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 genus was named by Linnaeus in honor of Heinrich Bernhard Oldenland, a Dutch botanist from the late 1600s. He helped establish the oldest public garden in South Africa, the Company's Garden in Cape Town (Wikipedia contributors).

State Ranking Justification [-]
There are nine existing populations but only three of them have over 200 plants. There are three historical populations from the early 1900s that have not been resurveyed.

Short-term Trends [-]

Long-term Trends [-]