New York Natural Heritage Program
Cat-tail Sedge
Carex typhina Michx.

Habitat [-]
Carex typhina occurs in floodplain forests, vernal pools in forests, wet forests, swamps, marshes, sedge dominated meadows, and flats along rivers (New York Natural Heritage Program 2005). Wet woods (Ford and Reznicek 2002). Moist or wet woods and marshes (Gleason & Cronquist 1991). Calcareous meadows and wooded bottomlands (Fernald 1970).

Associated Ecological Communities [-]
  • Floodplain forest
    A hardwood forest that occurs on mineral soils on low terraces of river floodplains and river deltas. These sites are characterized by their flood regime; low areas are annually flooded in spring, and high areas are flooded irregularly.
  • Red maple-hardwood swamp*
    A hardwood swamp that occurs in poorly drained depressions, usually on inorganic soils. Red maple is usually the most abundant canopy tree, but it can also be codominant with white, green, or black ash; white or slippery elm; yellow birch; and swamp white oak.

    * probable association but not confirmed
  • Shallow emergent marsh*
    A marsh meadow community that occurs on soils that are permanently saturated and seasonally flooded. This marsh is better drained than a deep emergent marsh; water depths may range from 6 in to 3.3 ft (15 cm to 1 m) during flood stages, but the water level usually drops by mid to late summer and the soil is exposed during an average year.

    * probable association but not confirmed
  • Silver maple-ash swamp
    A hardwood basin swamp that typically occurs in poorly-drained depressions or along the borders of large lakes, and less frequently in poorly drained soils along rivers. These sites are characterized by uniformly wet conditions with minimal seasonal fluctuations in water levels. The dominant trees are usually silver maple and green ash.
  • Vernal pool
    An aquatic community of one or more intermittently ponded, small, shallow depressions typically within an upland forest. Vernal pools are typically flooded in spring or after a heavy rainfall, but are usually dry during summer. Substrate is typically dense leaf litter over hydric soils. Vernal pools typically occupy a confined basin (i.e., a standing waterbody without a flowing outlet), but may have an intermittent stream flowing out of it during high water. This community includes a diverse group of invertebrates and amphibians that depend upon temporary pools as breeding habitat. These include amphibians, reptiles, crustaceans, mollusks, annelids, and insects.

Associated Species [-]
  • Red Maple (Acer rubrum)
  • Silver Maple (Acer saccharinum)
  • Gray's Sedge (Carex grayi)
  • False Hop Sedge (Carex lupuliformis)
  • Hop Sedge (Carex lupulina)
  • Tuckerman Sedge (Carex tuckermanii)
  • Common Buttonbush (Cephalanthus occidentalis)
  • Hairy Swamp Loosestrife (Decodon verticillatus)
  • Green Ash (Fraxinus pennsylvanica)
  • Spicebush (Lindera benzoin)
  • Blackgum (Nyssa sylvatica)
  • Sensitive Fern (Onoclea sensibilis)
  • Cinnamon Fern (Osmunda cinnamomea)
  • Douglas Knotweed (Polygonum douglasii)
  • Pin Oak (Quercus palustris)