rock fern

noun

Definition of rock fern

  1. :  any of various ferns that grow chiefly on or among rocks: such as a :  evergreen wood fern 1 b :  a finely divided tropical Asiatic and Australasian fern (Cheilanthes tenuifolia) that has been implicated in Australia in an acute intoxication of cattle c :  any of several chiefly tropical ferns of the genus Asplenium

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