Dryopteris intermedia

Familia: Dryopteridaceae
Genus: Dryopteris
Species:
Subspecies: D. i. subsp. azorica – D. i. subsp. intermedia – D. i. subsp. maderensis

Dryopteris intermedia (Muhl. ex Willd.) A.Gray, 1848

• Gray, A. 1848. A Manual of the botany of the Northern United States: from New England to Wisconsin and south to Ohio and Pennsylvania inclusive, (the mosses and liverworts by Wm. S. Sullivant,) arranged according to the natural system. BHL Reference page. : 630.

• Hassler, M. 2020. Dryopteris intermedia – World Ferns: Checklist of Ferns and Lycophytes of the World . In: Roskov Y., Orrell T., Nicolson D., Bailly N., Kirk P.M., Bourgoin T., DeWalt R.E., Decock W., De Wever A., Nieukerken E. van, Zarucchi J. & Penev L. (eds.) 2020. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2020 Mar 29.
• Govaerts, R. et al. 2020. Dryopteris intermedia in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Mar 29. Reference page. 
• International Plant Names Index. 2020. Dryopteris intermedia. Published online. Accessed: Mar 29 2020. Reference page.
• Tropicos.org 2020. Dryopteris intermedia. Missouri Botanical Garden. Published online. Accessed: 29 Mar 2020. Reference page.
• USDA, ARS, Germplasm Resources Information Network. Dryopteris intermedia in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 07-Oct-06.

For more multimedia, look at Dryopteris intermedia on Wikimedia Commons.