Literature Based Distribution
Region
Country
Mapping will be based on a standard reference mark based on political units when available.
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| Canada | | | Great Plains Flora Association | 1986 | (none) | Fl. Great Plains | i–vii, 1–1392 |
| Canada | | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| Canada | Nova Scotia | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | | | Munz, P. A. & D. D. Keck | 1959 | (none) | Cal. Fl. | 1–1681 |
| United States | | | Munz, P. A. | 1974 | (none) | Fl. S. Calif. | 1–1086 |
| United States | | | Cronquist, A. J., A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren | 1984 | Vascular Plants of the Intermountain West, U.S.A. | Intermount. Fl. | 4: 1–573 |
| United States | | | Great Plains Flora Association | 1986 | (none) | Fl. Great Plains | i–vii, 1–1392 |
| United States | California | | Munz, P. A. & D. D. Keck | 1959 | (none) | Cal. Fl. | 1–1681 |
| United States | California | | Munz, P. A. | 1974 | (none) | Fl. S. Calif. | 1–1086 |
| 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 |
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