Isoetes engelmannii

Taxonavigation

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

Isoetes engelmannii A.Braun, Flora 29: 178 (1846).

Homotypic
- Calamaria engelmannii (A.Braun) Kuntze, Rev. Gen. Pl. 2: 828 (1891).
- Isoetes lacustris var. microspora Engelm. ex A.Braun, Flora 29: 179 (1846).
Heterotypic
- Isoetes engelmannii var. gracilis Engelm. in A. Gray, Manual ed. 5, 677 (1876).

Native distribution areas:

Continental: Northern America
- Regional: Eastern Canada
  - Ontario
- Regional: North-Central U.S.A.
  - Illinois, Missouri
- Regional: Northeastern U.S.A.
  - Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia
- Regional: Southeastern U.S.A.
  - Alabama, Arkansas, Delaware, Georgia, Kentucky, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia

Braun, A.K.H. 1846. Ueber die nordamericanischen Isoëtes-Arten. Flora oder Botanische Zeitung 29(12): 177–180. BHL Reference page.

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.

Govaerts, R. et al. 2026. Isoetes engelmannii in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2026 May 30. Reference page.
Tropicos.org 2026. Isoetes engelmannii. Missouri Botanical Garden. Published online. Accessed: 30 May 2026. Reference page.
International Plant Names Index. 2026. Isoetes engelmannii. Published online. Accessed: 30 May 2026. Reference page.
Hassler, M. 2026. World Ferns. Checklist of Ferns and Lycophytes of the World. . Isoetes engelmannii Accessed: 30 May 2026. Reference page.