division Pteridophyta

from WordNet (r) 3.0 (2006)
division Pteridophyta
    n 1: containing all the vascular plants that do not bear seeds:
         ferns, horsetails, club mosses, and whisk ferns; in some
         classifications considered a subdivision of Tracheophyta
         [syn: {Pteridophyta}, {division Pteridophyta}]
    

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