Dryopteris intermedia subsp. intermedia
American Shield Fern, Common Wood Fern
Other regional names: Evergreen Shield Fern +6 more
- Evergreen Shield Fern
- Evergreen Wood Fern
- Fancy Fern
- Fancy Wood Fern
- Glandular Wood Fern
- Intermediate Wood Fern
- Intermediate Woodfern
Also known as: Aspidium grayanum Regel +10 more
- Aspidium grayanum Regel
- Dryopteris austriaca var. intermedia (Muhl. ex Willd.) C.V.Morton
- Dryopteris intermedia f. furcata C.F.Reed
- Dryopteris intermedia f. sparsifrondosa C.F.Reed
- Dryopteris spinulosa var. intermedia (Muhl. ex Willd.) Underw.
- Filix-mas spinulosa var. intermedia (Muhl. ex Willd.) Farw.
- Nephrodium spinulosum f. intermedium (Muhl. ex Willd.) Gilbert
- Nephrodium spinulosum var. intermedium (Muhl. ex Willd.) Davenp.
- Nephrodium spinulosum var. intermedium (Willd.) Davenp. ex Gilbert
- Thelypteris intermedia (Muhl. ex Willd.) House
- Thelypteris spinulosa var. intermedia (Muhl. ex Willd.) Nieuwl.
Botanical Data
- Taxonomic Rank: Subspecies
- Botanical Family: Polypodiaceae
- WCVP Morphological Data: Recorded natively as a rhizomatous geophyte.
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Dryopteris intermedia subsp. intermedia (commonly known as American shield fern or Common Wood Fern) is a fern belonging to the Polypodiaceae family. Originating in North America, this subspecies is primarily associated with temperate conditions. It is a naturally occurring subspecies of Dryopteris intermedia, which is linked below, along with other subspecies of this species.
Macro Climate
Temperate
Plant Type
Fern
Plant Type
Bulb
Native Range
Continents (WGSRPD)
NORTHERN AMERICA
Regions (WGSRPD)
Eastern Canada, North-Central U.S.A., Northeastern U.S.A., Southeastern U.S.A.
Botanical Countries (WGSRPD L3)
Alabama, Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Brunswick, New Hampshire, New Jersey, New York, Newfoundland, North Carolina, Nova Scotia, Ohio, Ontario, Pennsylvania, Prince Edward I., Québec, Rhode I., South Carolina, Tennessee, Vermont, Virginia, West Virginia, Wisconsin
Introduced Range
Plants flagged as 'Introduced' have been transported outside their native historical range by human activity. While many are common ornamentals, some may become naturalized or invasive in local environments. Local ecological guidelines require verification prior to planting.
Botanical Countries (Non-Native)
Japan
Base Species & Variations