New York Natural Heritage Program
Reznicek's Sedge
Carex reznicekii Werier
Carex reznicekii in fruit. David Werier
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: S1S2
A State Rarity Rank of S1S2 means: Critically Imperiled or Imperiled in New York - Especially or very vulnerable to disappearing from New York due to rarity or other factors; typically 20 or fewer populations or locations in New York, very few individuals, very restricted range, few remaining acres (or miles of stream), and/or steep declines. More information is needed to assign a single conservation status.

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?
This sedge was quite recently discovered, and described as a species new to science, during fieldwork in New York's Hudson Highlands. It was first discovered by New York botanist David Werier in 2006. It is named for Dr. Anton Reznicek of the University of Michigan, a Carex expert and enthuiast, in recognition of his ongoing teaching and research on sedges.

State Ranking Justification [-]
There are only four known extant and one historical population of Carex reznicekii from southeastern New York, including Long Island and the Lower Hudson Valley. This species is at the northerneastern edge of its range in New York with a few populations known from southern Connecticut and Rhode Island. It occurs in dry-mesic oak-hickory forests, which is a relatively common habitat. It also is difficult to identify after May, is a somewhat inconspicuous plant, and was only first described as a separate species in 2006. For these reasons, this species may be more common than current records indicate.

Short-term Trends [-]

Long-term Trends [-]