Pinaceae (Pine Family)
* Pines: White Pine, Eastern White Pine, Ponderosa Pine, Scots Pine, Lodgepole Pine, Jack Pine, Longleaf Pine, Slash Pine, Red Pine, Pitch Pine, Sugar Pine
* Spruce: Engelmann Spruce, Sitka Spruce, White Spruce, Norway Spruce, Black Spruce, Red Spruce
* Firs: Douglas Fir, Balsam Fir, Grand Fir, Noble Fir, White Fir, Fraser Fir
* Larch: European Larch, Western Larch, Tamarack
* Cedars: Red Cedar, Western Red Cedar, Incense Cedar, Eastern Red Cedar
* Hemlock: Eastern Hemlock, Western Hemlock, Mountain Hemlock, Carolina Hemlock
Cupressaceae (Cypress Family)
* Cypress: Bald Cypress, Monterey Cypress, Italian Cypress
* Redwoods: Coast Redwood, Giant Sequoia
* Junipers: Eastern Red Cedar, Western Juniper, Rocky Mountain Juniper
* Yew: Pacific Yew, English Yew
Other Softwood Families
* Taxaceae (Yew Family) - Yews
* Taxodiaceae (Taxodium Family) - Bald Cypress
* Araucariaceae (Araucaria Family) - Norfolk Island Pine, Monkey Puzzle Tree
Important Notes:
* "Softwood" is not about the actual hardness of the wood: It refers to the structure of the tree, where the vascular system is made of tracheids (single cells). This typically results in a lighter, less dense wood.
* Some softwoods are harder than some hardwoods: For example, Douglas Fir is often considered a strong, hard wood.
* The term "softwood" is more about the tree's evolutionary history than its actual hardness.
Let me know if you would like more details on a specific tree or family!