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Ferns

Definition: Seedless nonflowering plants of the class Filicinae. They reproduce by spores that appear as dots on the underside of feathery fronds. In earlier classifications the Pteridophyta included the club mosses, horsetails, ferns, and various fossil groups. In more recent classifications, pteridophytes and spermatophytes (seed-bearing plants) are in the division, or phylum, Tracheophyta.
Notes: prefer specific plant; coord with specific PLANT COMPONENTS term if pertinent; for use in therapy coord IM with PHYTOTHERAPY (IM) + disease/drug ther (IM) + PLANT PREPARATIONS or its indentations/ther use (IM or NIM) + specific plant chemical /ther use (I
Also Called: Pteridophyta,Tracheophyta,Blechnum

Ferns Categories.
Dennstaedtiaceae - The bracken fern plant family of the order Polypodiales, class Filicopsida, division Pteridophyta.
Dryopteridaceae - The wood fern plant family of the order Polypodiales, class Filicopsida, division Pteridophyta.
Marsileaceae - A plant family of the order Hydropteridales, class Filicopsida, division PTERIDOPHYTA. They are aquatic ferns with quatrifoliate leaves resembling four leaf clover, creeping rhizome, and bean shaped sporocarps.
Polypodiaceae - The fern plant family of the order Polypodiales, class Filicopsida, division Pteridophyta, subkingdom Tracheobionta.
Pteridaceae - A plant family of the order Polypodiales, class Filicopsida, division Pteridophyta (FERNS).

Ferns Definitions and Terms

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