Macartney rose (Rosa bracteata) is aggressive invasive forming dense thickets that displace native plants. Macartney rose competes with the endangered white bladderpod (Lesquerella pallida) in Texas. Encroachement by non-native species especially Macartney rose and honeysuckle are cited as the current most serious threat to the diminishing populations of the white bladderpod (U.S. Fish and Wildlife Service. 1992). The Macartney rose also ruins grazing pastures. It has been introduced for livestock containment in many areas and its spread has become a problem. Vegetation unpalatable to grazing livestock, but hips are edible Since it exhibits rapid succession and recovery, it commonly dominates pastures which have been overgrazed or burned. Macartney rose is able to regenerate from shoot bases, root buds, or from decumbent shoots and is quick to recover and spread after burnings. Its low mortality, efficient regrowth, and beneficial adaptation to fire render it a highly invasive weed (TexasInvasives, 2004; Grace et al. 2001; Everitt et al, 2002).
Location Specific Impacts:
Alabama (United States (USA))
Agricultural: Macartney rose (Rosa bracteata) forms impenetrable thickets ruin grazing pastures (ALIPC, undated).
Competition: Macartney rose (Rosa bracteata) displaces native species in Alabama (ALIPC, undated).