| Louisiana Quillwort |
Article Index for Louisiana |
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Information AboutLouisiana Quillwort |
| CATEGORIES ABOUT LOUISIANA QUILLWORT | |
| lycopodiophyta | |
| quillwort, louisiana | |
| endangered species | |
The Louisiana Quillwort (''Isoetes louisianensis'') is a small, grass-like aquatic plant of the family Isoetaceae . It occurs in only five locations in Washington and St. Tammany Parish es of Louisiana and some spots in southern Mississippi ( USA ). It is considered to be 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 . Distinctive characteristics of this species include brown-spotted sporangial walls and mega Spore s with highly reticulate ridges, producing a spiny effect. The Leaves are up to 40 cm long. The Louisiana Quillwort was discovered recently, in 1972, and was listed as an endangered species in 1992. EXTERNAL LINKS
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