Canopy
All of the following species are linked to the Plants For A Future website. PFAF has detailed descriptions of more than 7,000 plants from around the world. If you have some spare $$, be sure to donate to the PFAF organization.
Ash, White - Fraxinus americana
Birch, White - Betula papyrifera
Birch, Yellow - Betula alleghaniensis
Cedar, Northern White - Thuja occidentalis
Fir, Balsam - Abies balsamea L.
Hemlock, Canadian - Tsuga canadensis
Hickory, Shagbark - Carya ovata
Hickory, Bitternut - Carya cordiformis
Hickory, Pignut - Carya glabra
Locust, Black - Robinia pseudoacacia - NF
Maple, Black - Acer saccharum nigrum
Maple, Silver - Acer saccharinum
Maple, Striped - Acer pensylvanicum
Oak, Burr - Quercus macrocarpa
Oak, Chinkapin - Quercus muehlenbergii
Oak, Dwarf Chinkapin - Quercus prinoides
Oak, Rock Chestnut - Quercus prinus
Oak, Swamp White - Quercus bicolor
Oak, Scarlet - Quercus coccinea
Persimmon, American - Diospyros virginiana
Pine, Korean Nut - Pinus koraiensis
Poplar, Balsam - Populus balsamifera
Poplar, American Aspen - Populus tremuloides
Poplar, Bigtooth Aspen - Populus grandidentata
Tamarack, Hackmatack - Larix laricina
Walnut, Heartseed - Juglans ailanthifolia cordiformis