Literatura Basada en la Distribución
Región
País
Las marcas de referencia son basadas en marcas referentes de la ubicación general cuando están disponibles.
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| Canada | | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| Canada | | | Flora of North America Editorial Committee, e. | 1993 | Pteridophytes and Gymnosperms | Fl. N. Amer. | 2: i–xvi, 1–475 |
| Canada | British Columbia | | Flora of North America Editorial Committee, e. | 1993 | Pteridophytes and Gymnosperms | Fl. N. Amer. | 2: i–xvi, 1–475 |
| United States | | | Flora of North America Editorial Committee, e. | 1993 | Pteridophytes and Gymnosperms | Fl. N. Amer. | 2: i–xvi, 1–475 |
| United States | | | Munz, P. A. | 1968 | (none) | Suppl. Calif. Fl. | 1–224 |
| United States | | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | Alaska | | Flora of North America Editorial Committee, e. | 1993 | Pteridophytes and Gymnosperms | Fl. N. Amer. | 2: i–xvi, 1–475 |
| United States | California | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | California | | Flora of North America Editorial Committee, e. | 1993 | Pteridophytes and Gymnosperms | Fl. N. Amer. | 2: i–xvi, 1–475 |
| United States | California | | Munz, P. A. | 1968 | (none) | Suppl. Calif. Fl. | 1–224 |
| United States | Oregon | | Flora of North America Editorial Committee, e. | 1993 | Pteridophytes and Gymnosperms | Fl. N. Amer. | 2: i–xvi, 1–475 |
| United States | Washington | | Flora of North America Editorial Committee, e. | 1993 | Pteridophytes and Gymnosperms | Fl. N. Amer. | 2: i–xvi, 1–475 |
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