Isoetes appalachiana
Encyclopedia
Isoetes appalachiana, commonly known as the Appalachian quillwort (not to be confused with its close relative Isoetes engelmannii
, which shares the same common name), is an aquatic pteridophyte
that is widely distributed in the eastern United States
. It is most frequently encountered at low to middle elevations of the Appalachian Mountains in Pennsylvania
, though its range extends from there south to Florida
and Alabama
along the eastern slopes of the mountains. It is a tetraploid and is grouped in the Isoetes engelmannii complex.
Isoetes engelmannii
Isoetes engelmannii, commonly known as Engelmann's quillwort or Appalachian quillwort , is an aquatic pteridophyte and is the most widely distributed species of its genus in eastern North America...
, which shares the same common name), is an aquatic pteridophyte
Pteridophyte
The pteridophytes are vascular plants that produce neither flowers nor seeds, and are hence called vascular cryptogams. Instead, they reproduce and disperse only via spores. Pteridophytes include horsetails, ferns, club mosses, and quillworts...
that is widely distributed in the eastern United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
. It is most frequently encountered at low to middle elevations of the Appalachian Mountains in Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...
, though its range extends from there south to Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...
and Alabama
Alabama
Alabama is a state located in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama ranks 30th in total land area and ranks second in the size of its inland...
along the eastern slopes of the mountains. It is a tetraploid and is grouped in the Isoetes engelmannii complex.