Narrative

Quillworts (Class Isoetinae) are a group of primitive plants that grow along shorelines of primarily freshwater (sometimes brackish) lakes, ponds, rivers, and streams. Some species are totally submerged; some are partially submerged; others are terrestrial. Because they appear so much like grasses and sedges, they are frequently overlooked.

Quillworts comprise about 60 species of worldwide plants that are generally absent from the tropics. There are about 20 species in the United Staes, with seven of those being found in the northeastern United States. Thirteen species are figured and discussed in the original Brown and Britton Flora of the Northern United States. They generally are rare or absent in the midwestern Unites States.

Taxonomy

References