NPSpecies

Status based on voucher information from University of Alaska Museum Herbarium; Data Source: Carlson, M. L., R. Lipkin, M. Sturdy and J. A. Michealson. 2004. Kenai Fjords National Park [2003] vascular plant inventory final annual report. NPS, Southwest Alaska Network, Anchorage, AK. NPS/AKR/SWAN/NRTR-2004/02

Hordeum jubatum is native to western North America and has become naturalized in eastern North America, as well as Europe (Hitcock and Cronquest 1971, ITIS 2002, USDA 2002). Judging from herbarium records (University of Alaska Museum 2004), it is most likely to have been present in eastern interior Alaska prior to contact. However, it appears to have spread dramatically in the last half century associated with accelerated human disturbances. Populations in much of Alaska are generally associated with anthropogenic disturbance and are most likely introduced or introgressed genotypes as in Phalaris arundinacea in the Pacific Northwest (see Merigliano and Lesica 1998).; Data Source: AKNHP 2006 - Invasiveness Ranks 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: Moderately Invasive (score of 63 out of 100; AKNHP - Invasiveness Ranks)

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