Fauna
Plant

Marginal Wood Fern

Dryopteris marginalis

Also known as Marginal Shield Fern, Marginal Fern

Marginal wood fern forms robust, fountain-like clumps of leathery, dark blue-green fronds that remain evergreen through winter in much of its range. Emerging from a central vase-like rootstock, the erect fronds feature distinct spore-producing sori lined neatly along the outer margins of the leaflets. This hardy plant thrives in shaded, rocky woodlands and ravine slopes where few other plants find purchase.

EvergreenShade-LovingNative Plant
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & preyAutotrophic (photosynthesis)
Predators
  • Slugs
  • Snails
  • Browsing deer
ThreatsHabitat destruction, invasive species competition, severe drought
HabitatsRocky woodlands, shaded slopes, ravine walls, stream banks
Life spanPerennial (decades)
  1. FamilyDryopteridaceae
  2. SpeciesDryopteris marginalis
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
  • Sori Location: Flip a frond over to check for tiny spore clusters lined along leaflet edges.
  • Habitat Spotting: Look for blue-green frond crowns on steep, shaded, non-calcareous rock slopes.
  • Winter Observing: Watch for dark green fronds lying flat against the forest floor under snow.
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