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Isoetes ×eatonii

Scientific Name: Isoetes ×eatonii

Family: Isoetaceae

Category: Quillwort

Growth: Graminoid

Duration: Perennial

Other Names:

       

Eaton's Quillwort (Isoetes eatonii)

Eaton's quillwort, scientifically known as Isoetes eatonii, is a fascinating aquatic plant with unique origins and characteristics.

Taxonomy and Nomenclature

  • Scientific Name: Isoetes eatonii Dodge
  • Family: Isoetaceae
  • Order: Isoetales
  • Synonyms: Isoetes eatoni Dodge, Isoetes x eatonii R. Dodge (pro sp.) engelmannii x tenella

Distribution and Habitat

  • Eaton's quillwort can be found in ponds and slow-moving rivers, including locations in Canada and Kentucky.

Description

  • Isoetes eatonii is a quillwort, which are aquatic plants with grass-like leaves that arise from a corm-like base.
  • Internal air chambers within the leaves indicate that primitive Isoetes species were aquatic.

Genetics

  • Isoetes x eatonii is a sterile hybrid between I. echinospora and I. engelmannii.
  • Hybrid vigor is exhibited in Isoetes hybrids.
  • In some cases, chromosome doubling in hybrids like I. eatonii can lead to fertile allotetraploids.

Ecology

  • Isoetes eatonii may form hybrids with other quillwort species (Isoetes).

Further Information

  • Encyclopedia of Life: Go to Encyclopedia of Life
  • USDA-NRCS PLANTS Database
  • Tropicos: Tropicos
  • Wikimedia Commons
  • PLANTS Database
  • Wildlife &amp Ecology Studies Worldwide Database