The trilliums were blooming. You can find both white and pink flowering forms, although I seem to have taken pictures of only the pink ones this spring.
Perfoliate bellflower (Uvularia grandiflora)
One February I'm going to visit the park in time to see the skunk cabbage (Symplocarpus foetidus) coming up through the snow. The emerging spathe can generate heat to push up through frozen mud in early spring. The spathes are an interesting mottled burgandy color but the flowers are unremarkable themselves. The lush foliage that emerges much later in warmer weather reminds me of hostas.
A botanical oddity, squawroot (Conopholis americana) is a parasitic plant that attaches to the roots of oaks and beeches. It lives entirely under the soil except for when the cone-shaped flowers erupt in the spring.
There are several types of violet found in the park.
I've always been fond of the yellow wood violets...
but these variegated purple and white beauties are gorgeous.
Dainty white flowers of something that I haven't looked up yet.
Rue anemone (Thalictrum thalictroides)
Jack-in-the-pulpit (Arisaema triphyllum) is always a treat to find. There are both the green striped and the brown striped forms in Midcounty Park.
I cannot seem to refrain from taking pictures of fiddleheads. I can't tell you how many I've got on file, but here's another one.
The liverwort (Anemone hepatica) had finished flowering before I found this patch, but the leaves are always beautiful.
So had the bloodroot (Sanguinaria canadensis), but the distinctive leaf is a dead giveaway for identifying this plant.
Another common spring wildflower, wild geranium (Geranium maculatum).