Isoetes butleri
Isoetes butleri, commonly known as limestone quillwort,[1] is a species of plant in the quillwort family, a member of the lycophytes.
| Isoetes butleri | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Lycophytes |
| Class: | Lycopodiopsida |
| Order: | Isoetales |
| Family: | Isoetaceae |
| Genus: | Isoetes |
| Species: | I. butleri |
| Binomial name | |
| Isoetes butleri | |
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]
References
- "Isoetes butleri". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 30 September 2016.
- "Isoetes butleri". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014. Retrieved 30 September 2017.
- "Isoëtes butleri in Flora of North America @ efloras.org". efloras.org. Retrieved 30 September 2017.
- Yatskievych, George (1999). Flora of Missouri, Volume 1. Missouri Botanical Garden Press. p. 131.
- "Isoëtes butleri | Ferns of Texas". ferns.brit.org. Retrieved 30 September 2017.
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