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Isoëtes engelmannii
Also called Appalachian quillwort, Engelmann's Quillwort
Isoetes engelmannii is a species of aquatic plant in the family Isoetaceae. It is referred to by the common names Engelmann's quillwort or Appalachian quillwort (not to be confused with the newly described Isoetes appalachiana), and is the most widely distributed species of its genus in eastern North America. Its range extends from Ontario in the north, south to Florida and west Arkansas and Missouri. It can be found from April to October in temporary pools, bogs, marshes, stream edges, swamps and along wet roadsides.
Isoetes engelmannii is widely distributed in eastern North America, more so than any other species in the genus occurring in that region. Within Canada it is only found in the extreme southern portions of Ontario. In the United States its primary range begins in New Hampshire in the northeast and west to New York. There are also several outlying populations farther west in western Michigan. The range extends south along the Appalachians to the extreme north of Florida, and also continues west in the mountains to the northeastern tip of Mississippi, the northeastern tip of Arkansas and southeastern Missouri, and north to the southern portions of Indiana and Illinois. Another disjunct population exists in northeastern Ohio.
Isoetes acadiensis · Isoetes alpina · Appalachian Quillwort · Isoetes araucaniana · Isoetes australis · Isoetes bolanderi · Isoetes brevicula · Isoetes butleri · Isoetes capensis · Isoetes caroliniana · Isoetes × eatonii · Isoetes echinospora
Text excerpted from the Wikipedia article Isoetes engelmannii by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
