Equisetum X ferrissii Clute Family Equisetaceae Genus Equisetum Specific epithet X ferrissii Specific author Clute Group Pryer
P. Hammond s.n. UC Primary collector P. Hammond s.n. Voucher location UC Accession number 1733476 Duplicate locations Supplemented 25 June 1999 Date collected 1998-10-27 Country of origin U.S.A. Specific locality San Francisco, naturalized in Strybing Arboretum, Golden Gate Park Longitude (DD) 0 Latitude (DD) 0 Voucher comments Spores malformed, mostly non-green, undoubtedly a hybrid Record Comments living material sent to Wolf, 29 Oct 1998, as Eq. laevigatum Group Pryer User pryer