New York Natural Heritage Program
Porter's Reedgrass
Calamagrostis porteri ssp. porteri
Monocots
Calamagrostis porteri leaves Stephen M. Young
Family: Grass Family (Poaceae)

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: G4T4
A Global Rarity Rank of G4T4 means: Apparently Secure globally - Both the species as a whole and the subspecies/variety are uncommon 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.


Did you know?
This species was first collected by Elmira botanist T. F. Lucy on Sullivan's Hill in Chemung County from 1882 to 1897. It was not collected again until 1944 when Stanley Smith from the New York State Museum collected it behind the Elmira Reservoir on Hoffman Hill.

State Ranking Justification [-]
There is one existing population of thousands of plants that has been known since 1895. There are seven historical populations known from the first half of the 1900s.

Short-term Trends [-]

Long-term Trends [-]