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Taxon author: (Torr. ex S. Watson) Rydb.

ITIS records citing taxon author "(Torr. ex S. Watson) Rydb."
 
 Kingdom Plantae
  Psorothamnus polydenius (Torr. ex S. Watson) Rydb. -- accepted -- Nevada dalea
  Psorothamnus polydenius var. polydenius (Torr. ex S. Watson) Rydb. -- accepted -- Nevada dalea, Nevada smokebush
   

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