New York Natural Heritage Program
Freshwater Tidal Marsh
Freshwater tidal marsh Timothy G. Howard
System: Estuarine
SubSystem: Estuarine Intertidal

State Protection: Not Listed
Federal Protection: Not Listed

State Rarity Rank: S2
A State Rarity Rank of S2 means: Typically 6 to 20 occurrences, few remaining individuals, acres, or miles of stream, or factors demonstrably make it very vulnerable in New York State.

Global Rarity Rank: G3G4
A Global Rarity Rank of G3G4 means: Vulnerable globally, or Apparently Secure -- At moderate risk of extinction, with relatively few populations or locations in the world, few individuals, and/or restricted range; or uncommon but not rare globally; 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?
A characteristic species found in freshwater intertidal marshes is wild rice (Zizania aquatica). In addition to providing habitat and food for fish and waterfowl, wild rice has been an important food staple for Native Americans for thousands of years. The ancestral grain to wild rice has even been found in layers of earth dating back 12,000 years! Today, about 23 million pounds of "wild" wild rice varieties as well as "cultivated" wild rice varieties are produced each year around the world - 4 million of which is considered "wild" grow.

State Ranking Justification [-]
This community is restricted to the freshwater portion of tidal rivers. The majority of occurrences are on the Hudson River with over 75% in Greene, Columbia, and Dutchess Counties. There are estimated to be about 40 occurrences in the state. Several of these occurrences are threatened because of shoreline development and invasive plants.

Short-term Trends [-]

Long-term Trends [-]