New York Natural Heritage Program
Collins' Sedge
Carex collinsii Nutt.
Carex collinsii Troy Weldy
Family: Sedge Family (Cyperaceae)

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: G4
A Global Rarity Rank of G4 means: This species is apparently secure globally (typically with more than 100+ populations), though it may be quite rare in parts of its range, especially at the periphery.

Did you know?
This species is named in honor of Zaccheus Collins who lived from 1764-1831 (Fernald 1970).

State Ranking Justification [-]
There are four known populations and more than twenty historical locations, all restricted to Long Island and Staten Island. A number of the historical locations are either considered extirpated or have been surveyed without finding this plant. Only one site has more than a hundred culms. This site is actually quite large, possibly over a thousand culms, and it is the only site on protected land where management practices take the needs of this plant into account. This is a very unique looking sedge, making it difficult to overlook. Few to no new populations are expected.

Short-term Trends [-]

Long-term Trends [-]