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Isoëtes valida
Also called Strong quillwort, Carolina Quillwort, True Quillwort
Isoetes valida, commonly known as the strong quillwort or true quillwort, is an aquatic lycophyte native to eastern North America. It is found primarily in the Appalachian Mountains from Pennsylvania south to Alabama and Georgia. In addition, one collection of the plant was made in a railway ditch in Wilmington, Delaware in the 1860s, but this was most likely an accidental introduction.
Some sources consider Isoetes caroliniana a synonym of this species, others regard it as a separate species.
Isoetes acadiensis · Isoetes alpina · Appalachian Quillwort · Isoetes araucaniana · Isoetes australis · Isoetes bolanderi · Isoetes brevicula · Isoetes butleri · Isoetes capensis · Isoetes caroliniana · Isoetes × eatonii · Isoetes echinospora
Text excerpted from the Wikipedia article Isoetes valida by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
