Literature Based Distribution
Region
Country
Mapping will be based on a standard reference mark based on political units when available.
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| United States | | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | | | Voss, E. G. | 1972 | Gymnosperms and Monocots | Michigan Fl. | i–xv, 1–488 |
| United States | | | Gleason, H. A. & A. J. Cronquist | 1968 | The Pteridophytoa, Gymnospermae and Monocotyledoneae | Ill. Fl. N.E. U.S. | 1: 1–482 |
| United States | | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | Massachusetts | | Gleason, H. A. & A. J. Cronquist | 1968 | The Pteridophytoa, Gymnospermae and Monocotyledoneae | Ill. Fl. N.E. U.S. | 1: 1–482 |
| United States | Massachusetts | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | Michigan | | Voss, E. G. | 1972 | Gymnosperms and Monocots | Michigan Fl. | i–xv, 1–488 |
| United States | Michigan | | Gleason, H. A. & A. J. Cronquist | 1968 | The Pteridophytoa, Gymnospermae and Monocotyledoneae | Ill. Fl. N.E. U.S. | 1: 1–482 |
| United States | Michigan | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | Ohio | | Gleason, H. A. & A. J. Cronquist | 1968 | The Pteridophytoa, Gymnospermae and Monocotyledoneae | Ill. Fl. N.E. U.S. | 1: 1–482 |
| United States | Ohio | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | Pennsylvania | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | Vermont | | Gleason, H. A. & A. J. Cronquist | 1968 | The Pteridophytoa, Gymnospermae and Monocotyledoneae | Ill. Fl. N.E. U.S. | 1: 1–482 |
| United States | Vermont | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
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