Dryopteris intermedia
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- Ferns, Fern Allies and Lycophytes Strouds Run Area
- European Red List of Lycopods and Ferns
- (Dryopteris Expansa) C. Presl Fraser-Jenkins & Jermy
- Sc Native Plant List
- Winter 2017- 1 President’S Message
- 2021 Sebright Gardens Fern List
- Fantastic Ferns and How to Grow Them
- Fall-2010.Pdf
- Dryopteris (Dryopteridaceae) Li-Bing Zhang1,2*, Liang Zhang1, Shi-Yong Dong3, Emily B Sessa4, Xin-Fen Gao1 and Atsushi Ebihara5
- View the Fern Guide
- Vascular Flora of the Penobscot Experimental Forest, with Provisional Lists of Lichens and Bryophytes
- Fern Gazette V17 P4 V9.Qxd 01/02/2006 09:51 Page 223
- Dryopteridaceae Wood Fern Family
- Genesee Valley Audubon Society Native Plants and Trees for Birds
- Relationships and Evolutionary Origins of Polyploid Dryopteris (Dryopteridaceae) from Europe Inferred Using Nuclear Pgic and Plastid Trnl-F Sequence Data
- 1 Plant List on Monhegan Island. Compiled by Richard Dyer
- The Ferns and Pines of the Delmarva Peninsula