Tamarack trees belong to the larch family. The word "tamarack" is Native American for "wood for snowshoes". As the name implies, the wood is durable and pliable. It's easy to miss tamaracks in the summer when their green needles blend in with all the other green trees, but at this time of year they really stand out. They are the only tree in Ontario with needles that turn yellow in the fall. In the photo above, several tamaracks form a background for cedars.
The little seed cones are reminiscent of hemlock cones.
The needles grow in tufts like some pine trees.
Tamaracks will grow in a variety of soil conditions but they need a sunny location to survive. If they are planted with other trees that will grow faster than them, chances are that, over time, the other trees will begin to shade the tamaracks and they will die out.