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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Dryopteris expansa

Dryopteris expansa (C. Presl) Fraser-Jenkins & Jermy

Spreading woodfern

Dryopteridaceae (Wood Fern Family)

Synonym(s): Dryopteris assimilis, Dryopteris dilatata, Dryopteris dilatata ssp. americana, Dryopteris spinulosa var. dilatata

USDA Symbol: DREX2

USDA Native Status: L48 (N), AK (N), CAN (N), GL (N)

The starchy rootstocks were eaten by the local native people.

 

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Plant Characteristics

Duration: Perennial
Habit: Herb , Fern
Flower:
Fruit:

Bloom Information

Bloom Color: Not Applicable
Bloom Notes: Not a flowering plant. Reproduces by spores.

Distribution

USA: AK , CA , CO , ID , MI , MN , MT , OR , WA , WI , WY
Canada: BC , NL
Native Habitat: Woodland,Riparian,Alpine

Growing Conditions

Light Requirement: Part Shade , Shade
Soil Moisture: Moist
Soil Description: Organic, Humus Enriched

National Wetland Indicator Status

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FACU FACW FAC FAC FACW
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Additional resources

USDA: Find Dryopteris expansa in USDA Plants
FNA: Find Dryopteris expansa in the Flora of North America (if available)
Google: Search Google for Dryopteris expansa

Metadata

Record Modified: 2007-01-01
Research By: TWC Staff

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