horsehair lichen

Noun
  1. Any of several lichens of the genus Alectoria having a thallus consisting of filaments resembling hair (synset 113011357)
    is a type of: lichen - any thallophytic plant of the division Lichenes; occur as crusty patches or bushy growths on tree trunks or rocks or bare ground etc.
    belongs to: alectoria, genus alectoria - lichens having dark brown erect or pendulous much-branched cylindrical thallus
    same as: horsetail lichen

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