Formal documentation of nine nonnative plant species in New Hampshire

Abstract

We describe the formal documentation of nine nonnative plant species naturalized in New Hampshire. Formal documentation here is defined as voucher specimens being collected and deposited in a publicly accessible herbarium, in this case, Hodgdon Herbarium (NHA) at the University of New Hampshire. Two of the nine species were known to the State’s Invasive Species Coordinator prior to 2021