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Noun: class Sphenopsida
  1. Horsetails and related forms
    - Sphenopsida, Equisetatae, class Equisetatae

Type of: class

Part of: division Pteridophyta, Pteridophyta

Nearest

class Psilopsida
class Psilotatae
class Pteridospermopsida
class Pyrenomycetes
class Reptilia
class Rhodophyceae
class Sarcodina
class Scaphopoda
class Schizomycetes
class Scyphozoa
class Sphenopsida
class Sporozoa
class structure
class struggle
class Symphyla
class Tardigrada
class Taxopsida
class Tentaculata
class Thaliacea
class Tiliomycetes
class Trematoda