What is the meaning of the word "oak fern"?

Definitions:

  1. A small woodland fern, of northern regions, having triangular, pinnate fronds that slant horizontally. copy to clipboard NOUN
    • The oak fern thrives in the dappled shade beneath the forest's canopy, adding a touch of green elegance to the woodland floor. copy to clipboard
  2. Bright blue-green fern widely distributed especially in damp acid woodlands of temperate northern hemisphere. copy to clipboard NOUN
    • Gardeners often use oak ferns to create a naturalistic woodland garden, appreciating their light texture and vibrant color. copy to clipboard

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