Table 1. The 16 source populations sampled to examine phenotypic plasticity of invasive tree species Acer negundo L.
| Province/Department | Collection site | River | Latitude | Longitude | Distance to thenearest population (km) |
| Native range | |||||
| Ontario | Paris | Grand | 43°12′27″N | 80°21′58″W | 65 |
| Ontario | Fergus | Grand | 43°41′53″N | 80°22′50″W | 65 |
| Ontario | Nicolston | Nottawasaga | 44°10′40″N | 79°49′02″W | 18 |
| Ontario | Angus | Nottawasaga | 44°18′59″N | 79°53′08″W | 18 |
| Ontario | Toronto Home Smith park | Humber | 43°39′06″N | 79°29′44″W | 26 |
| Ontario | Toronto Serena Gundy park | Don | 43°43′05″N | 79°21′15″W | 26 |
| Quebec | Sherbrooke | Saint-François | 45°23′44″N | 71°52′50″W | 24 |
| Quebec | Windsor | Saint-François | 45°34′04″N | 72°00′23″W | 24 |
| Invasive range | |||||
| Landes | Saubusse | Adour | 43°39′22″N | 01°11′13″W | 10 |
| Landes | Riviere-Saas-et-Gourby | Adour | 43°40′29″N | 01°08′06″W | 10 |
| Landes | Pontonx-sur-l’Adour | Adour | 43°47′03″N | 00°55′30″W | 35 |
| Gironde | Cestas | Eau Bourde | 44°45′20″N | 00°40′49″W | 30 |
| Gironde | Bruges | Les Jalles | 44°54′13″N | 00°36′16″W | 30 |
| Gironde | Moulon | Dordogne | 44°51′30″N | 00°13′10″W | 19 |
| Gironde | Castillon-la-Bataille | Dordogne | 44°51′04″N | 00°02′16″W | 19 |
| Gironde | St-Denis-de-Pile | Isle | 44°59′34″N | 00°12′29″W | 22 |