New York Natural Heritage Program
Swamp Buttercup
Ranunculus hispidus var. nitidus (Chapman) T. Duncan
Dicots
Family: Buttercup Family (Ranunculaceae)

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?
This species is probably overlooked in the field because of the subtle differences between it and the other two varieties of Ranunculus hispidus which are very common in the state.

State Ranking Justification [-]
There are three existing populations although one of them has not been checked since 1982 and its location is not very specific. The other two existing populations have only three or four plants each and grow in dynamic habitats which could threaten plants. There are only four historical records and only one has a good chance of being rediscovered.

Short-term Trends [-]

Long-term Trends [-]