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Isoëtes louisianensis
Also called Louisiana quillwort, Lousiana Quillwort
Isoetes louisianensis, the Louisiana quillwort, is a small, grass-like aquatic plant of the family Isoetaceae. It is "one of the rarest quillworts in North America." It occurs in only five locations in St. Tammany and Washington Parishes of Louisiana, as well as some spots in southern Mississippi and south-central Alabama. It is federally listed as an endangered species, partly due to its highly restricted range.
The Louisiana quillwort occurs predominantly on sand and gravel bars on small to medium-sized streams. These plants live for periods underwater. They are regularly inundated as much as 50 centimeters (20 inches) following rains, and may be inundated for long periods in wet seasons. Its habitat follows roughly along the Bogue Chitto River.
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 louisianensis by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
