Get Out and See the Spring Wildflowers (or Nature’s Filters)
Every mid-winter, I become impatient with winter’s cold, and dreary grays. I find myself wondering if the world around me is ever going to be warm, lively, and colorful again. And every spring, as the days grow longer and warmer, my faith is restored, as I see little signs of life popping out of the leaf litter in my yard and native metro woodlands. In a matter of weeks, the grays, browns, and faded golds of the winter forest floor transform into a carpet of green, white, gold, blue, and purple. The spring ephemeral wildflowers arrive, and the forest takes on a moist, rich scent and texture.
Growing up with the Cook County, Chicago forest preserves as one of my family’s most significant recreation destinations, I learned in our annual search for Jack-in-the-Pulpits, to appreciate how this time of delightful delicacy and color, is short-lived, as these forest wildflowers take advantage of the sunlight that temporarily reaches the forest floor, during the time between the end of winter, and the leafing out of the shrub and tree layers above them.
These flowers must complete their lifecycles in a matter of weeks, growing, blooming, being pollinated, and setting seed before the dense shade of summer arrives. It is because their opportunity to thrive is so short, that these plants grow in great numbers, with several adaptations for attracting pollinators: bright colors, enticing scents, and nectar guides on their petals. Some even have petals which serve as landing platforms for flying insects.
Spring ephemerals are perennials that sprout mostly from underground bulbs and corms, which they have stored with starch during their previous growing season. They grow close to the ground because there is no competition at this growth level, and this low profile reduces damage from cold winds. Because the weather in the early spring is still too cold for most flying insects, ants and small ground beetles pollinate most of these plants and disseminate their seeds.
The natural intricacies and beauty of this time in the woods are more than enough to provide a rationale for conservation and restoration, but recent research by the Leopold Center at Iowa State University tells us that these forest floor communities play a big role in water quality as well. A recent press release from the center tells how certain species of the forest floor are high performers when it comes to capturing and storing nutrients, along with their companion native trees and shrubs. Together, their root and shoot biomass act as giant natural sponges and filters. Iowa State has a couple of nice write ups with more information and can be found at:
The weather this year has been unusual but normally I’d suggest you look for the earliest spring ephemerals between late March and early April, especially on moist south-facing slopes warmed by the sun, and on moist bottomlands next to streams. Later in a normal spring, look for new blooms on rich, moist, well-drained east and north-facing slopes. Some of the most common spring ephemerals you will see in our region are, Spring Beauty, Dog Tooth Violet, Toothwort, Dutchman’s Breeches, Virginia Bluebell, Wild Sweet William, May Apple, Wake Robin, Bellwort, Bloodroot, Jack-in-the-Pulpit, Putty Root Orchid, and False Rue Anemone. They will be interspersed with longer lived spring bloomers, like Wild Ginger, Wild Geranium, Jacob’s Ladder, Virginia Waterleaf, Solomon’s Seal, False Solomon’s Seal, and several ferns.
This spring, wander our metro region’s woodland wildlands with a guidebook and marvel at our ephemeral spring beauty. You can search for carpets of color in the Fort Leavenworth bottomland forests, Swope Park, Burr Oak Woods Conservation Area, Isley Park Woods Natural Area, Maple Woods Natural Area, the Blue River bottomlands, and Hidden Valley Natural Area.
Roberta Vogel-Leutung is a city girl with rural Iowa and Kansas roots who grew up on the southwest side of Chicago in a family of 13. There, she frequently took refuge at the top of her family’s three story Weeping Willow Tree, and explored the Cook County Forest Preserves with her family, her Boy Scout brothers, and her St. Albert’s Girl Scout Troop. She’s a big fan of local nature, and works on Urban Waters partnership projects, and various community engagement and sustainability initiatives, from her seat in ENSV where she has been a contractor or employee since 1988.
Editor's Note: The opinions expressed here are those of the author. They do not reflect EPA policy, endorsement, or action, and EPA does not verify the accuracy or science of the contents of the blog.
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