| Ophioglossum engelmannii | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Ophioglossales |
| Family: | Ophioglossaceae |
| Genus: | Ophioglossum |
| Species: | O. engelmannii |
| Binomial name | |
| Ophioglossum engelmannii | |
Ophioglossum engelmannii, commonly known as the limestone adder's-tongue, [1] is a species of fern native to the Western Hemisphere. It is widespread and native to the United States, Mexico, and Central America. [1] Its primary natural habitat is dry barrens and glades in calcareous areas. [2]
It is a small species that produces leaves in the spring and dies back in the summer. A second growth of leaves is sometimes produced with the fall rains. [3]
