| crataegus florifera | | Canada: Ontario, Middlesex Co., University of Western Ontario campus, rear of, Staging Building | | 802085343 |
| crataegus florifera | | Canada: Ontario, Essex Co., Gosfield South Tp., N side of Conc. II, road, # 1880, Wm. Balkwill property | | 802085392 |
| crataegus florifera | | Canada: Ontario, Elgin Co., Aldborough Tp., Port Glasgow, Beattie Access, Park | | 802085436 |
| crataegus florifera | | Canada: Ontario, Middlesex Co., University of Western Ontario campus, rear of, Staging Building | | 802085518 |
| crataegus florifera | | Canada: Ontario, Middlesex Co., University of Western Ontario campus, rear of, Staging Building | | 802085618 |