The weather has varied a lot so far this spring. Minor snow squalls and hailstorms trade off with wonderfully warm, sunny days, which seem to call out, encouraging us to find the signs of spring. When the season brings all the beauty and promise of plants and flowers emerging from the winter, I feel as if I am seeing friends old and new once again. It’s rather comforting to know that regardless of what occurs in human society, spring carries on in the Lake County Forest Preserves in northern Illinois.
Many of the floral signs of spring are ephemeral, created by healthy populations of plant species that only emerge above ground for six to eight weeks—between the start of the spring warm-up and the closure of the canopy, when the trees grow a full set of leaves. Their live-fast lifestyle is an evolved response to their shade intolerance. Ephemerals need to finish flowering and fruiting while they have enough sunlight, and also put something away for a rainy day. They stash the sugar they make during photosynthesis in underground storage organs such as corms, bulbs, and rhizomes. The starchy carbon will see them through the winter into the next spring.
Some residents of our woodlands and prairies announce the arrival of spring in understated ways that require careful attention. The early-flowering harbinger of spring (Erigenia bulbosa), and later bloodroot (Sanguinaria canadensis), are two examples. Other signs of spring are exuberant and showy, such as the carpets of marsh marigold (Caltha palustris) at Ryerson Conservation Area in Riverwoods. And of course, no spring display is quite so welcome as large-flowered trillium (Trillium grandiflorum) in full bloom. (This sight is only possible when the white-tailed deer (Odocoileus virginianus) population is stable; otherwise these beautiful plants are eaten out of existence.)
Not all spring wildflowers are showy, though, and not all of them are ephemeral. Arriving later in the season, Jack-in-the-pulpit (Arisaema triphyllum) is one of the most common spring wildflowers in our woodlands. It’s usually entirely green in Lake County. Rarely, some maroon stripes may also be seen on the inflorescence, the reproductive portion of the plant.
The air was warm, the sunshine spread everywhere. Spiderwort blooms were freshly open, a waist-high meadow of bluish-purple fireworks. We found the steel T-post marking the start of the day’s first transect and the red flag for the first plot.
Then we gathered our tools. A one-meter-square collapsible wooden quadrat, retractable tape measure, clipboard, data sheets, and each other’s knowledge of plants.
Well, my own knowledge, not so much. I was there to take photos and observe the three experts onsite: Pati Vitt, Manager of Ecological Restoration; Ken Klick, Restoration Ecologist II; and Pete Jackson, who authored a 2009 study on this preserve’s plant communities that served as his thesis for a master’s degree program. In my head, I called them the Plant Team.
Time can never be stopped, sped up, or slowed down. It started long before now and will continue far after. But with photographs, we can pause time, pin it in front of us, and study reality. It’s like kneeling at a riverbank and scooping a handful of water. The current stops in your palm, but just a foot beneath it carries on. Photos take time to make a moment.
With nearly 31,000 acres to explore, many moments are possible in the Lake County Forest Preserves in northern Illinois. An eastern bluebird (Sialia sialis) landing with one foot, wings at sharp angles. A cluster of milkweed seeds hanging on to their pod by threads of floss. Sunflowers and sunbeams, two shades of honey mixing in the air. I’ve collected these special moments and more in a gallery below.
All photos featured were taken by the truly skillful photographers in our group Flickr pool. Each of these images, these presses of the pause button and scoops out of the river, were captured in 2018. Our sincere thanks go to every photographer who shares their time and talent documenting the flora, fauna, and natural areas of Lake County.
April is the month when every day seems to bring a new bird flying into the woodland, a new amphibian calling from the pond, a new mammal poking along the river, a new insect hatching in the prairie, and, most of all, a new plant unfurling from the forest floor.
April through the end of May provides ideal conditions to enjoy spring wildflowers. These plants are also called “ephemerals,” which means “lasting for a very short time.” Spring ephemerals take advantage of abundant light in the woodland before leaves emerge in the canopy above. Ephemerals complete their entire life cycle before shade covers the forest floor.
If you haven’t visited your favorite Lake County Forest Preserve lately, come along with me on this virtual wildflower walk to see what’s blooming now and what’s to come.
Many years ago, while hiking through a prairie at dusk, I saw a stalk of delicate white flowers. They seemed to rise and hover above the surrounding plants like a group of little dancing ghosts. This was the first and last time I ever saw an eastern prairie fringed orchid (Platanthera leucophaea). Due to its dwindling numbers and hidden habitats, this rare plant has reached almost mythical status—a holy grail of sorts in the Midwest. We’re thrilled that this endangered native orchid seems to be gaining a foothold in the Lake County Forest Preserves, which are home to some of the largest remaining populations. Just this month, one of our restoration ecologists discovered an orchid in bloom (photo below). It was found at one of the preserves known to provide habitat for this species but is the first documentation of a population at the site.
September in Lake County, Illinois is a month of big sky punctuated by tips of tall prairie plants in an array of autumnal colors. Before the trees really get going with their own colorful show, sparks of bright yellow from the many varieties of goldenrod (Solidago spp.) dominate the open spaces. Most of the summer these plants go unnoticed, adding merely another green hue to the lush surroundings, but September is their time to shine. What may also go unnoticed, even now as goldenrod demands our attention, is the hidden world inside each plant in the form of a gall.
Last week while visiting Lyons Woods, I noticed that a large patch of garlic mustard was quivering. When I got closer, I found that it was not the breeze making the plants sway, but rather a huge group of red admiral butterflies (Vanessa atalanta) flitting from flower to flower. In many areas, all you have to do is walk out your front door to witness the population explosion of these ubiquitous butterflies that is sweeping the northeastern United States this spring.
During a training hike for volunteer nature guides last week, a fellow naturalist pointed out a series of pea-sized holes in the ground. I walk along this same trail regularly and had never noticed them. As our group stooped around these holes, shivering on this cold but sunny spring morning, a tiny head crept slowly out of the one of the holes. It was the head of a mining bee! Continue reading →
Don’t get me wrong, I love spring, but the first signs of green to shoot out of the leaf litter stink! While this spring seems to be on fast-forward, with many woodland wildflowers appearing almost to six weeks early, the first plants to sprout in Lake County were still the stinky duo of skunk cabbage (Symplocarpusfoetidus), and Chicago‘s supposed namesake, wild leek (Allium tricoccum). The Native American tribes of this region called the plant in question “shikaakwa” or “chicagoua”.