New York Natural Heritage Program
Frank's Sedge
Carex frankii Kunth
Monocots
Carex frankii line drawing Britton, N.L., and A. Brown (1913); downloaded from USDA-Plants Database.
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: 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 species is named after Joseph C. Frank (1782-1835) who discovered this species (Fernald 1970).

State Ranking Justification [-]
There are only four known populations that are rather small and two historical popualtions for this wetland sedge that may be confused with Carex squarrosa or Carex typhina. New York appears to be this plant's northeastern range limit. There is the potential that this is overlooked, however Flora of North America states that this is one of "the mostly easily recognized sedge species." There are minor threats that include manipulation to hydrology, changes in water chemistry, invasive species, and direct habitat alterations.

Short-term Trends [-]

Long-term Trends [-]