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Specimen data from the Consortium of California Herbaria
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Pentagramma viscosa
Pentagramma viscosa
Schuettp. & Windham
Family:
Pteridaceae
silverback fern
[
Gymnogramma triangularis var. viscosa
D.C.Eaton ,
more
Pentagramma triangularis subsp. viscosa
(D.C. Eaton) Yatsk., Windham & E. Wollenw.,
Pityrogramma triangularis var. viscosa
(D.C. Eaton) Weath.
]
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