NPSpecies

Status based on voucher information from University of Alaska Museum Herbarium

Many experts believe this taxon originated in Europe (Dempster 1993, Whitson et al. 2000) and it is now cosmopolitan in distribution. However, according to USDA Plants Database and ITIS (2003) this taxon is considered native to Alaska, Hawaii, and the continental US. Hultén (1968) reported a native variety with upright leaves (var. pilgeri) as possibly native to Alaska. Hitchcock and Cronquist (1973) recognized a native variety (var. pachyphylla Piper) of saline habitats and introduced variety (var. major L.). We therefore treat this as a polymorphic taxon of primarily or exclusively non-native genotypes. Legacy NPSpecies information may no longer be applicable, please remove if it is not applicable. In legacy NPSpecies Cultivation value was Not cultivated with comment: Assume for any Present in Park that does not already have a code for cultivation to be Not cultivated per A. Miller 01/23/2007 In legacy NPSpecies Weedy value was Yes with comment: Weakly Invasive Plant (AKNHP 2006 Invasiveness score of 44 out of 100)

Park Species Data Source: Northern Plant Documentation Center, Herbarium, University of Alaska Museum (ALA), Fairbanks, AK