Salicaceae
| Name | Height | Leaf | Fruit | Region |
| Trembling Aspen Populus tremuloides |
40' - 60', can be 90' | nearly circular, abrupt sharp tip, 1.5" - 2" | pods, nearly conical, .25" | throughout Canada |
| Largetooth Aspen Populus grandidentata |
50' - 60', can be 100' | oval to almost circular, 2" - 4" | pods, narrowly conical | Deciduous and Great Lakes - St. Lawrence |
| Balsam Poplar Populus balsamifera |
60' - 80', can be 100' | oval, tapering to sharp tip, 3" - 5" | pods, oval, .25" - .5" | Boreal, Great Lakes - St. Lawrence, and Acadian |
| Eastern Cottonwood Populus deltoides |
75' - 100' | like equilateral triangle, short tip, 2" - 4" |
pods, oval, .25" - .33" | Prairies, Deciduous, and Great Lakes - St. Lawrence |
| Black Cottonwood Populus trichocarpa |
80' - 125' | broadly oval, tapering to tip, 3" - 5" | pods, nearly circular, .33" - .5" | British Columbia and western Alberta |
| Narrowleaf Cottonwood Populus angustifolia |
under 40' | narrow, 2" - 3" by .5" - .75" | pods, broadly oval, .25" | southern Alberta and southwestern Saskatchewan |
| Black Willow Salix nigra |
50' | narrows to long point, finely toothed, 3" by .5" | cone-shaped capsule, on catkin | Ontario to Atlantic Coast |
| Shining Willow Salix lucida |
10', shrub or small tree | long tip, finely toothed, 4.5" by 1.25" | ?? | central Saskatchewan to Newfoundland |
| Peachleaf Willow Salix amygdaloides |
up to 40', often a shrub | long tip, finely toothed, 4" by 1" | ?? | tree in Manitoba and Ontario only |
| Beaked Willow Salix bebbiana |
10', usually shrub | variable, blunt tipped, 2.5" | long pointed capsule in clusters, .25" | across Canada |
| Pussy Willow Salix discolor |
to 20', shrub or tree | short tip, rounded teeth, 3.5" by 1.25" | long beaked capsule, .25" - 5" | Alberta to Newfoundland |
| Pacific Willow Salix lasiandra |
30', can be 60' | long tip, finely toothed, 4.5" by 1" | on catkin | Alberta to Pacific Coast |
| Scouler Willow Salix scouleriana |
up to 30' | blunt tipped, a few teeth, 3" | long pointed capsule in cluster, .25" | Saskatchewan to British Columbia |
| Hooker Willow Salix hookeriana |
30' | blunt tip, 3" | dense cottony seeds | Vancouver Island |
