BioStor
Equisetum pratense Ehrh.
 | A list of the ferns and fern allies of North America north of Mexico, with principal synonyms and distribution William R Maxon (1901) Proceedings of The United States National Museum 23: 619-651 |
 | A TAXONOMIC AND ECOLOGIC STUDY OF THE RIVERBOTTOM FOREST ON ST-MARY RIVER LEE CREEK AND BELLY RIVER IN SOUTHWESTERN ALBERTA CANADA R K Shaw (1976) Great Basin Naturalist 36: 243-271 |
 | A floristic survey of the Bear Trap Canyon, Madison County, Montana, with a discussion of author citations using the connecting words In or Ex P P Lowry (1981) Phytologia 49: 81-94 |