Fauna
Plant

Common Polypody

Polypodium vulgare

Also known as Adder's Fern, Wood Licorice, Golden Maidenhair, Wall Fern

Common polypody is a resilient evergreen fern that anchors itself to mossy rocks, tree trunks, and stone walls via creeping, scale-covered rhizomes. Its deeply divided, leathery fronds remain vibrant throughout the winter, providing vital green cover in temperate woodlands. During late summer and autumn, bright yellow-orange circular spore cases called sori develop in neat rows on the undersides of the leaves.

EvergreenEpiphyticShade-Loving
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & preyAutotrophic (Photosynthetic)
Predators
  • Slugs
  • Snails
  • Woodlice
ThreatsHabitat destruction, over-harvesting for horticulture, extreme droughts
HabitatsDeciduous woodlands, rocky cliffs, stone walls, mossy tree trunks
Life spanPerennial (Rhizomes can live for decades)
  1. FamilyPolypodiaceae
  2. SpeciesPolypodium vulgare
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
  • Check the undersides: Look beneath the fronds in late summer to see the bright orange, circular spore cases arranged in neat rows.
  • Examine the rhizome: Notice the creeping, scale-covered rhizomes that allow this fern to scale vertical rock faces and tree trunks.
  • Observe winter resilience: Look for this plant during winter hikes, as its evergreen fronds stand out when other vegetation has died back.
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