I conducted these field trips at Cowan Lake. Cowan lake is a decent sized lake with a variety of wildlife surrounding it.
Field Trip 1
Grasses and Sedges
Here are two graminiods. I believe the one of the left is sedge due to its trig-angular stems. Also when looking at the blade/sheath, it is closed. The picture on the right is a typical weedy grass seen alongside many forests.
Here are two invasive plant species. One belonging to the Rose family (on the left). It is known as the multiflora rose. The other is a honeysuckle!
The three lifespans I know of are perennial, annual, and biennial. Annual means the flower last a year then spreads its seeds. Biennial means two years, and perennial means more than two. The garlic mustard on the left is an annual. The dandelion on the right is a mixture of them, but the roots are known to be biennial.
Monocot and eudicots
The flower on the left is a eudicot because it contains flower parts in 5s. It is not linear and contains two cotyledons. The flower on the right is a monocot because it contains flower parts in 3s. It is linear with a single cotyledon.
Field Trip 2
The moss on the left is an acrocarp, while the moss on the left is a pleurocarp.
Ferns were hard to find in the area I searched! These look like miniature ferns, however, I am not fully confident that they are ferns.
Threats to trees
The tree on the left looks like it is being ambushed by lichens. The lichen is not directly causing a problem to the tree, however, it is believed that it could be a sign that the tree is drying. On the right there is a tree that is dead and contains three (that you can see) massive holes. These holes look similar to the emerald ash borer holes.
Finally, here are two unique shrubs I found at the park. One contains fruits that are visible. This other shrub seemed very prominent throughout the park even though they have quite the unique leaf shape.