Isoetes louisianensis

Taxonavigation

Taxonavigation: Isoetales
Superregnum: Eukaryota Cladus: Diaphoretickes Cladus: CAM Cladus: Archaeplastida Regnum: Plantae Divisio: Tracheophyta Divisio: Lycopodiophyta Classis: Lycopodiopsida Subclassis: Isoetidae Ordo: Isoetales

Familia: Isoetaceae
Genus: Isoetes
Species: Isoetes louisianensis

Name

Isoetes louisianensis Thieret, Sida 5: 129 (1973).

• Type: United States, Louisiana: Washington Parish. In and along Thigpen Creek 1 mile E of Enon, 21 Apr 1972, Garrie Landry 200. Holotype: GH, isotype: MICH. Paratype: Louisiana: Washington Parish. In and along Thigpen Creek 1 mile E of Enon. 30 Sep 1972, John W. Thieret 33660 (GH, MICH).

Distribution

Native distribution areas:
Continental: Northern America Regional: Southeastern U.S.A. Louisiana, Mississippi. References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References

Primary references

• Landry, G.P. & Thieret, J.W. 1973. Isoetes louisianensis (Isoetaceae), a new species from Louisiana. Sida 5(2): 129–130. BHL Reference page. 

Additional references

• Troìa, A., Pereira, J.B.S., Kim, C. & Taylor, W.C. 2016. The genus Isoetes (Isoetaceae): a provisional checklist of the accepted and unresolved taxa. Phytotaxa 277(2): 101–145. DOI: 10.11646/phytotaxa.277.2.1 ResearchGate Reference page. 

Links

• Govaerts, R. et al. 2026. Isoetes louisianensis in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2026 Jun 2. Reference page. 
• Tropicos.org 2026. Isoetes louisianensis. Missouri Botanical Garden. Published online. Accessed: 2 Jun 2026. Reference page.
• International Plant Names Index. 2026. Isoetes louisianensis. Published online. Accessed: 2 Jun 2026. Reference page.
• Hassler, M. 2026. World Ferns. Checklist of Ferns and Lycophytes of the World. . Isoetes louisianensis Accessed: 2 Jun 2026. Reference page.
• USDA, ARS, Germplasm Resources Information Network. Isoetes louisianensis in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12. Reference page. 
• USDA NRCS PLANTS Profile

Vernacular names

• English: Louisiana Quillwort