Of Prairie Wildflowers and Wily Weevils

“If I had my way, I’d remove January from the calendar altogether and have an extra July instead.” –Roald Dahl

We need…rain. I keep looking to the skies for any sign of it. No luck.

What we will see on Wednesday is the full “Super Buck Moon” , sometimes called the “Thunder Moon”. On Monday, not quite at peak, it was still stunning.

Almost to full moon over Crosby’s backyard prairie, Glen Ellyn, IL.

Despite the lack of rain, the prairie pours out flowers.

Leadplant (Amorpha canescens) and prairie cinquefoil (Drymocallis arguta), Schulenberg Prairie, Lisle, IL.

Acre after acre of wildflowers.

Leadplant (Amorpha canescens), prairie dock (Silphium terebinthinaceum), new jersey tea (Ceanothus americanus) and other prairie species, Schulenberg Prairie, Lisle, IL.

Not all is going smoothly in the grasslands, however. This is the season of the wonderful, wild, and wicked weevils. Two of the prairie’s evil weevils merit special attention: the sunflower head-clipping weevil and the wild indigo weevil. Let’s turn our attention first to the sunflower head-clipping weevil.

Compass plant (Silphium laciniatum), Schulenberg Prairie, Lisle, IL. (2020)

Looks innocent, doesn’t it? Then —see that compass plant with its flowerhead chopped off? 

Compass plant (Silphium laciniatum), Schulenberg Prairie, Lisle, IL.

That’s a signature weevil move. How about that prairie dock bloom? Or…was in bloom.

Prairie dock (Silphium terebinthinaceum), Schulenberg Prairie, Lisle, IL.

Yup, the wily weevil was at work again.  Sometimes known by its nickname, “the head clipping weevil,” its scientific name is almost-almost!–unpronounceable: Haplorhynchites aeneus. Our wicked weevil is black, and about ⅓ inches long with a long, curved schnoz. Rather than knifing through the flower itself, the weevil severs the stem below the flower head. After the weevil applies the guillotine and girdles the flower’s peduncles (try saying that fast three times), the resiny sap of the compass plant bubbles to the surface and glistens in the sunshine. You can see the resiny sap on the plants in the winter, too, but it’s more crystalized.

Compass plant (Silphium laciniatum), Belmont Prairie, Downers Grove, IL (November 2021)

Now, swipe your finger over that sticky sap, and you’ll get a taste of Native American chewing gum. Note: Don’t get the resinous sap in your hair. If you do, you’ll star in a completely different kind of episode of “Chopped.”

White wild indigo (Baptisia alba) and brown-belted bumblebee (Bombus griseocollis), Schulenberg Prairie, Lisle, IL.

The sunflower head-clipping weevil is only one of many weevils on the prairie. The wild indigo weevil (Trichapion rostrum) is in the Family Brentidae, a group of straight-snouted weevils. This family is currently in flux—entomologists still haven’t decided who exactly is in it (#entomologicaldilemmas). This is a hungry, hungry weevil, which we find in the fall inside pods of white wild indigo. At only a quarter of an inch, the wild indigo weevil is (wait for it) the “lesser of two weevils.” (Da-da-dum).

Wild indigo weevils at work on white wild indigo seed pods, Schulenberg Prairie, Lisle, IL. (2021)

Weevils have many devoted fans. There are weevil blogs, weevils websites, and weevil specialists. You could say that weevils are some of the stars of the insect world! I’m glad they specialize. Imagine if they cut the flower heads off of all prairie flowers. Yikes!

Prairie milkweed (Asclepias sullivanti), Schulenberg Prairie, Lisle, IL.

It’s bad enough they attack some of the sunflowers and some of the coneflowers. Destructive? Yup. Fascinating? Absolutely. Perhaps the most famous weevil is the Boll Weevil (Anthonomus grandis), featured in Elvis Presley’s song, “Little Sister.” Rock on, weevils! But leave some of the other prairie wildflowers to the bees and other insects, okay? 

Butterfly milkweed (Asclepias tuberosa), Schulenberg Prairie, Lisle, IL.

Who knows what other intriguing insects you’ll find in the tallgrass this week?

12-spotted skimmer (Libellula pulchella), Schulenberg Prairie, Lisle, IL.

Wildflowers, too.

Illinois tick trefoil (Desmodium illinoense), Schulenberg Prairie, Lisle, IL.

Why not go for a hike and see what you discover?

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The opening quote is by Roald Dahl (1916-1990), a British spy, fighter pilot, and the author of James and the Giant Peach, Charlie and the Chocolate Factory, Matilda, and Chitty Chitty Bang Bang.

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Join Cindy for a class or program this week!

Last call for Beginning Dragonfly and Damselfly ID offered as a blended class through The Morton Arboretum in Lisle, IL! Join Cindy on Zoom Thursday for an introduction to the fascinating world of dragonflies and damselflies. Then, meet your class on the prairie to discover some of these beautiful flying insects. Register here.

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Thanks to Teri P. for the Elvis Presley reference, and to the following sources on weevils: The Smithsonian online, the Chicago Botanic Garden (great blog post! check it out), North Carolina State extension, Wikipedia, and the Kansas State Extension, and many prairie mentors over the years who loved the “lesser of two weevils” pun, and shared it with me. I laughed every time.

A Hike on the June Prairie

“Good day sunshine.” — John Lennon & Paul McCartney

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A little rain. A bit of sunshine this week, too—at last. Let’s hike the June prairie together, and see what’s happening after the spring storms.

Tallgrass prairies in the Chicago region crackle with activity. Angelica opens its firework flowers in the soggy areas.

Spiderwort is everywhere, both in bud…

…and in bloom. Its short-lived flowers only last a day or two, and often close in the afternoon.

Clouds of prairie phlox float across the low grasses in varied hues, from pearl…

…to palest lavender, with purple eyes…

…to hot pink. So many variations!  When the phlox mingles with the spiderwort, it makes me think of a Monet painting.

Not all the blooms are as jazzy as the prairie phlox. Intermixed with the phlox,  prairie alumroot spikes open small green flowers with orange anthers. Inconspicuous, until you look closely. The phlox is fragrant, but the alumroot is scentless. Notice the silvery leadplant photobombing the image below, plus some sedges sprinkled around.

Close to the stream, I see meadow rue heading skyward.  In a good wet year like this one, meadow rue will likely top out at six or seven feet tall. When meadow rue blooms,  the flowers remind me of fringed Victorian lamps. Today, they are mostly in bud.

Cauliflower fists of wild quinine buds are about to pop.

As are those of the common milkweed. I turn the leaves over, but no monarch eggs. Yet.

As I admire the buds and blooms, I notice dragonflies perched to soak up the sun. Dragonflies have kept a low profile for the past two months; sulking about the windy, chilly, drizzly, and generally gloomy weather.  I discover a twelve-spotted skimmer…

…and also, a common whitetail. Both species will be ubiquitous by late June, but these first appearances always delight me. Welcome back.

As I look into foliage along the trails for more dragonflies and damselflies, I see clumps of what appear to be bubbles. Inside of the froth is a spittlebug. I pull one sticky mass apart with my fingers and gently admire a tiny green nymph. Later, when I’m at home, I read that the nymph will feed on the plant and eventually become an adult that looks something like a leafhopper, to which they are related. Although they are considered a pest, we don’t worry much about them on the prairie. They do little damage.

In the cool breeze, I’m grateful for the sun.  I snap off a red clover bloom and chew on some of the petals. Sweet. So sweet. Red clover isn’t a native prairie plant, but it’s pretty and generally not too invasive. We only pull it in our display areas at the front of the prairie.

The native yellow wood sorrel leaves are also irresistible, with their sour, tangy jolt to the tastebuds. Both the red clover and yellow wood sorrel are found in every Illinois county. Tough little flowers.

Brown-headed cowbirds often show up at my birdfeeders at home, as well as on my prairie hikes. They have several different trademark calls. This one sings a Clink-whistle! I admire it, glossy in the sunshine. Cowbirds are despised by many birders for their habit of laying their eggs in other bird species’ nests; letting someone else raise the kids. Ah, well.

The earliest spring prairie blooms are now in the business of making seeds.  Jacob’s ladder, which pulled blue sheets of flowers across the prairie just weeks ago, now carries clusters of sprawling seedpods. Except for the plant’s ladder-like leaves, it’s unrecognizable.

I pull a pod apart and check the tiny seed, pinching it between my fingernail and thumb. Still green. When the seedpods turn brown, I’ll bag them and use them to propagate other parts of the prairie where they aren’t as common.

Wood betony is another wildflower that has undergone a complete makeover, spiraling from yellow blooms into into soldier-straight rows. I mentally mark its locations for our work group’s seed collection efforts in a few weeks.

A common sight on the Midwestern prairies at this time of year is the remains of dogbane pods (or Indian hemp as it is sometimes known) that escaped the prescribed burns. Seedless now, it looks graceful, scything the breeze. My prairie work group collected last year’s dogbane stalks to experiment with making fiber this season. Native American’s knew dogbane could be used for twine, fishing line, and even fiber to weave clothing. I enjoy the way the pods catch the wind.

Wild coffee (sometimes known as horse gentian or tinker’s weed), has made an eye-catching mound in the knee-high tallgrass. Look closely.

You’ll see the dark reddish brown flowers, nestled in the leaf axils. Later this summer, the flowers will turn into small orange fruits tucked into the leaves. The dried fruits were used as a coffee substitute by early settlers.

The highlight of my hike is finding one of my favorite prairie wildflowers beginning to go to seed: common valerian (Valeriana edulis ciliata). I love its explosions of seed-spirals, and the way its stalk is beginning to transform from white to pink. As it ages, the pink intensifies until it is almost neon bright on the prairie.

So much to see. So much to hear. So many things to enjoy with all the senses. It’s difficult to do desk work. What if I miss something?

The prairie conjures up new astonishments every day.

I can’t wait to see what the rest of the week brings.

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Paul McCartney and John Lennon penned the song, “Good Day Sunshine” for the Beatles’ 1966 album, Revolver. It’s a good cure for rainy day blues. Listen to it here and you’ll be humming it all day.

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All photos copyright Cindy Crosby and are from two different prairie hikes put together (top to bottom): butterweed (Packera glabella), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; great Angelica (Angelica atropurpurea), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; spiderwort (Tradescantia ohiensis), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; spiderwort (Tradescantia ohiensis), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; prairie phlox (Phlox pilosa), Schulenberg Prairie, The Morton Arboretum, Lisle, IL;  prairie phlox (Phlox pilosa), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; spiderwort (Tradescantia ohiensis) and prairie phlox (Phlox pilosa), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; prairie alumroot (Heuchera richardsonii affinis) with the phlox, Schulenberg Prairie, The Morton Arboretum, Lisle, IL; purple meadow rue (Thalictrum dasycarpum),  Schulenberg Prairie, The Morton Arboretum, Lisle, IL; wild quinine (Parthenium integrifolium), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; common milkweed (Asclepias syriaca) Schulenberg Prairie, The Morton Arboretum, Lisle, IL; 12-spotted skimmer dragonfly (Libellula pulchella), Fermilab Natural Areas Interpretive Trail, Batavia, IL; common whitetail (Plathemis lydia) , Schulenberg Prairie, The Morton Arboretum, Lisle, IL; spittlebug (possibly Philaenus spumarius) , Schulenberg Prairie, The Morton Arboretum, Lisle, IL; red clover (Trifolium pratense) , Schulenberg Prairie, The Morton Arboretum, Lisle, IL; yellow wood sorrel (Oxalis stricta), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; brown-headed cowbird (Molothrus ater), Fermilab Natural Areas Interpretive Trail, Batavia, IL; Jacob’s ladder (Polemonium reptans) seedpods, Schulenberg Prairie, The Morton Arboretum, Lisle, IL; wood betony (Pedicularis canadensis), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; dogbane (Apocynum cannabinum), Fermilab Natural Areas Interpretive Trail, Batavia, IL; wild coffee or late horse gentian (Triosteum perfoliatum), Schulenberg Prairie, The Morton Arboretum, Lisle, IL; wild coffee or late horse gentian (Triosteum perfoliatum) flowers, Schulenberg Prairie, The Morton Arboretum, Lisle, IL; common valerian (Valeriana edulis ciliata), Schulenberg Prairie, The Morton Arboretum, Lisle, IL.

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Cindy’s Upcoming Classes and Events

Tonight! Introduction to the Tallgrass Prairie, Tuesday, June 4, 7-9 p.m., Lake to Prairie Wild Ones, Fremont Public Library, 1170 N Midlothian Rd, Mundelein, IL 60060. Free and open to the public.

Thursday, June 6–9 p.m. — A Tallgrass Conversation, talk and book signing. Bring a picnic dinner for the social at 6 p.m. Talk begins around 7:30 p.m. Pied Beauty Farm, Stoughton, Wisconsin. Details here.

Friday, June 14, or Friday, June 28, 8-11:30 a.m., Dragonfly and Damselfly ID, The Morton Arboretum, Lisle, IL. Registration here (first session is sold out).

Thursday, June 20, 7-9 p.m. The Tallgrass Prairie: Grocery Store, Apothecary, and Love Charm Shop, Rock Valley Wild Ones, Rock Valley Community College, Rockford, IL. Details here. Free and open to the public.

See more at http://www.cindycrosby.com