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Taxon author: Pennell & J.W. Thomp.

ITIS records citing taxon author "Pennell & J.W. Thomp."
 Kingdom Plantae
  Pedicularis atrosanguinea Pennell & J.W. Thomp. -- not accepted
  Pedicularis bracteosa var. atrosanguinea (Pennell & J.W. Thomp.) Cronquist -- accepted -- bracted lousewort
  Synthyris lanuginosa (Piper) Pennell & J.W. Thomp. -- accepted -- featherleaf kittentails

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