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Dryopteris affinis

Family: dryopteridaceae
Common name(s): The King Male Fern
Hardiness ratings: USDA zone 4 - 9 This is a summary of the individual hardiness ratings given by the links below

General resources

Wikipedia. Online encyclopedia entry (if defined).
Google images. Web search for photographs.
The Plant List. Taxonomical lookup
Catalogue of Life. Taxonomical lookup

Links for Dryopteris affinis

Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 4-9) (3 photos)
Denver Botanic Gardens - Description, native range, and cultural requirements. (additional pages for other varieties) (zone 4)
Garden.org - Community-assembled plant profile (4 varieties in database) (4 photos)
Heritage Perennials: Dryopteris affinis The King - Profile with description and horticultural details. (zone 4-9) (1 photo)
NARGS Image Gallery - Photograph(s) contributed by North American Rock Garden Society members. (1 photo)
Plant Delights Nursery: Dryopteris affinis 'Crispa Gracilis' - Catalog page with photo, horticultural basics, and descriptive blurb. (1 photo). Also a page for 'The King'.

Dryopteris affinis subsp. affinis

Common name(s): golden scaled male fern

Dryopteris affinis subsp. borreri

Common name(s): Borrer's Scaly Male Fern ; Buckler Fern
Hardiness ratings: USDA zone 6