Publication: Amer. Fern J. 16: 46. 1926.
Origin: Native
Herbarium search: CPNWH
Notes: FNA2: "Equisetum × nelsonii , the hybrid between E . laevigatum and E . variegatum , is often mistaken for small forms of E . × ferrissii."
Last updated 8/29/2014 by David Giblin.