Vascular Plants of North Carolina
Account for Ferriss's Scouring Rush (a hybrid) - Equisetum x ferrissii  
Members of Equisetum with account distribution info or public map:
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Section 2 » Family Equisetaceae
Author
DistributionWeakley (2020) states that there have been various reported occurrences in the literature of this hybrid in NC, but he has seen no verified specimens. It is a hybrid between E. laevigatum and E. praealtum.
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Global RankGNA
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County Map - click on a county to view source of record.