New York Natural Heritage Program
Thicket Sedge
Carex abscondita Mackenzie
Monocots
Carex abscondita 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: G4G5
A Global Rarity Rank of G4G5 means: Apparently or Demonstrably Secure globally - Uncommon to common in the world, but not rare; usually widespread, but may be rare in some parts of its range; possibly some cause for long-term concern due to declines or other factors. More information is needed to assign a single conservation status.


Did you know?
The specific epithet abscondita means concealed (Fernald 1970) which could refer to both: the staminate spike which is sessile and often concealed by the distal bract and/or pistillate spikes; as well as the culms which are shorter than and concealed by the leaves of the vegetative shoots.

State Ranking Justification [-]
There are currently six known populations and 15-20 historical populations, although some mis-identifications may exists. This plant may be overlooked, but New York is near its northern range limit. Still, we should anticipate finding a few more populations once more people have a better search image. All currently known populations are relatively small. No trend information is known and the threats are likely minimal.

Short-term Trends [-]

Long-term Trends [-]