Pteridium aquilinum

Definitions of Pteridium aquilinum
  1. noun
    large coarse fern often several feet high; essentially weed ferns; cosmopolitan
    synonyms: bracken, brake, pasture brake
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    type of:
    fern
    any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores
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