Dryopteris intermedia (Muhl. ex Willd.) A. Gray
Intermediate woodfern, Evergreen wood-fern, Fancy wood fern
Dryopteridaceae (Wood Indies-Almond Family)
Synonym(s): Dryopteris austriaca var. intermedia, Dryopteris spinulosa var. concordiana, Dryopteris spinulosa var. intermedia
USDA Symbol: DRIN5
The extreme variability of size and colour may make it confusing to identify. In addition, it sometimes grows mixed with D. carthusiana in some areas. (Ferns of Grey and Bruce Counties)
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Habit: Herb , Fern
Leaf Retention: Evergreen
Leaf Complexity: Bipinnate
Leaf Shape: Ovate
Leaf Texture: Leathery
Leaf: Green usually through winter. Sometimes dying back in winter.
Bloom InformationBloom Color: Not Applicable
Bloom Notes: Not a flowering plant. Reproduces by spores.
DistributionUSA: AL , CT , DC , DE , GA , IA , IL , IN , KY , MA , MD , ME , MI , MN , MO , NC , NH , NJ , NY , OH , PA , RI , SC , TN , VA , VT , WI , WV
Canada: NB , NL , NS , ON , PE , QC
Native Habitat: Moist rocky woods, especially hemlock hardwoods, ravines, and edges of swamps.
Growing ConditionsLight Requirement: Shade
Soil Moisture: Moist
Soil Description: Organic, Humus Enriched
Conditions Comments: Will grow in rocky soil if moisture requirements are met.
PropagationPropagation Material: Clump Division
Seed Collection: Spores mature in mid-summer, are difficult to germinate.
Maintenance: The plant does not spread quickly but can be divided in spring or fall.
National Wetland Indicator Status
From the National Suppliers DirectoryAccording to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Sunshine Farm & Gardens - Renick, WV
American Native Nursery - Quakertown, PA
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Longwood Gardens - Newark, DE
Mt. Cuba Center - Hockessin, DE
BibliographyBibref 928 - 100 easy-to-grow native plants for Canadian gardens (2005) Johnson, L.; A. Leyerle
Bibref 841 - Native Alternatives to Invasive Plants (2006) Burrell, C. C.
Search More Titles in Bibliography
Additional resourcesUSDA: Find Dryopteris intermedia in USDA Plants
FNA: Find Dryopteris intermedia in the Flora of North America (if available)
Google: Search Google for Dryopteris intermedia
MetadataRecord Modified: 2014-06-26
Research By: TWC Staff