Isoetes butleri | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Lycophytes |
Class: | Lycopodiopsida |
Order: | Isoetales |
Family: | Isoetaceae |
Genus: | Isoetes |
Species: | I. butleri
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Binomial name | |
Isoetes butleri |
Isoetes butleri, commonly known as limestone quillwort, [1] is a species of plant in the quillwort family, a member of the lycophytes.
It is native to the eastern United States, where it is scattered and local. [2] It is found almost exclusively on seasonally wet alkaline soils. [3] Common habitats include rocky prairies and glades, most often over limestone. [4] This species is inconspicuous and easily overlooked, due to its superficial similarity to a vegetative grass or sedge. [5]
The leaves of Isoetes butleri die back at the end of spring, when its habitat becomes hot and dry. It is then reduced to a below ground corm. [4]