Potamogeton natans, commonly known as broad-leaved pondweed, floating pondweed, or floating-leaf pondweed, is an aquatic species in the genus Potamogeton native to quiet or slow-flowing freshwater habitats throughout the Holarctic Kingdom.
Potamogeton perfoliatus is a perennial aquatic plant in the family Potamogetonaceae occurring in both standing and flowing freshwater habitats. It is widely distributed globally, occurring in all continents except South America and Antarctica.
Potamogeton praelongus, commonly known as whitestem pondweed in North America and long-stalked pondweed in Britain, is a large, perennial aquatic plant in the family Potamogetonaceae. It is widely distributed in lakes and rivers in the northern hemisphere, but is sensitive to poor water quality.
Potamogeton alpinus is a species of perennial aquatic plant known by the common names alpine pondweed and red pondweed. It is widespread in the northern hemisphere in both rivers and lakes with good water quality.
Potamogeton gramineus is a species of aquatic plant known by the common name various-leaved pondweed, variableleaf pondweed, grass-leaved pondweed or grassy pondweed, native to the northern hemisphere where it grows in shallow, clean water.
Potamogeton pusillus is a species of aquatic plant known by the common names small pondweed, lesser pondweed or least pondweed. It occurs in standing and slow-flowing freshwater habitats throughout the Northern Hemisphere.
Potamogeton compressus is a species of aquatic plant known by the common names grass-wrack pondweed, flatstem pondweed and eel-grass pondweed.
Potamogeton obtusifolius, known as blunt-leaved pondweed, is an aquatic plant in the genus Potamogeton. It grows mainly in mesotrophic to eutrophic lakes, ponds and ditches, rarely in brackish water. It occurs primarily in Central Europe, the British Isles, Fennoscandia and eastern North America.
Potamogeton friesii, known as flat-stalked pondweed, or Fries' pondweed, is an aquatic plant in the genus Potamogeton. It grows mainly in mesotrophic to eutrophic rivers, lakes, ponds and ditches, rarely in brackish water. It occurs in North America, Europe, western Asia and a few scattered locations elsewhere in Asia.
Potamogeton ogdenii, common name Ogden's pondweed, is a perennial plant native to North America.
Sparganium fluctuans is a species of bur-reed found in North America known by the common name floating bur-reed. It is listed as endangered in Connecticut.
Paspalum laeve common name field paspalum, is a plant found in North America.
Panicum verrucosum, common name warty panicgrass, is a plant in North America. It is listed as a special concern and believed extirpated in Connecticut. It is listed as threatened in Indiana and Michigan, and as endangered in Ohio.
Piptatherum pungens, also called Oryzopsis pungens, commonly called slender mountain-ricegrass, ricegrass, northern ricegrass, or slender mountain-rice, is a plant found in North America. It is listed as endangered in Connecticut, Iowa, New Jersey, and Pennsylvania. It is listed as extirpated in Indiana, as a special concern in Rhode Island, and as threatened in Vermont.
Potamogeton gemmiparus, is a species of plant found in North America. It is also known as Potamogeton pusillus var. gemmiparus, common names capillary pondweed, slender pondweed, and budding pondweed. It is listed as threatened in Connecticut and in New Hampshire, as rare in Indiana, and as a special concern in Rhode Island.
Potamogeton hillii, common name Hill's pondweed, is a species of plant found in North America. It is listed as endangered in Connecticut, Ohio, and Pennsylvania. It is listed as a special concern in Massachusetts and as threatened in Michigan and New York (state).
Potamogeton strictifolius, common names straight-leaved pondweed, pondweed,straight-leaf pondweed, and narrow-leaved pondweed, is a species of plant found in North America. It is listed as endangered in Connecticut, Illinois, Indiana, Massachusetts, and in New York (state). It is listed as possibly extirpated in Maine, and presumed extirpated in Ohio.
Potamogeton vaseyi, common name Vasey's pondweed, is a species of plant found in North America. It is listed as an endangered species in Indiana, Massachusetts, and Pennsylvania, and is listed as threatened in Connecticut, Maine, Michigan, and New Hampshire, and as presumed extirpated in Ohio.
Sporobolus clandestinus, common names rough dropseed and rough rushgrass, is a species of grass found in North America. It is listed as endangered in Connecticut., Maryland, New York (state), and Pennsylvania. It is listed as threatened in Kentucky.
Dichanthelium sphaerocarpon, also called Panicum polyanthes, common name round-seed panic grass, is a plant found in North America. It is listed as endangered in Michigan. Dichanthelium sphaerocarpon var. isophyllum is listed as a special concern and believed extirpated in Connecticut.
