Common hoptree (Ptelea trifoliata) COSEWIC assessment and status report: chapter 4
Distribution
Global Range
The typical subspecies of this species (P. trifoliata ssp. trifoliata) occurs naturally from the lower Great Lakes to Texas, eastward from eastern Pennsylvania to northern Florida. Other subspecies occur farther south into Florida and Mexico, and west to New Mexico and Arizona (Figure 2). Maps are given for the species in the status report by (Ambrose & Aboud, 1982) and for the subspecies in Ambrose (1984), reproduced on the ROM/OMNR web site with some modification.
Canadian Range
In Canada it is limited to extreme southern Ontario, namely the Lake Erie shoreline and a few inland sites (Figure 3). Detailed maps are given in Ambrose & Aboud (1982), Ambrose (1984) and the ROM/MNR species at risk web site. It has been collected in Quebec, but it is considered introduced there (Rousseau, 1974).
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