Archives For Plant Science & Conservation

Conserving plants is one of the most significant challenges of our time—and a major focus at the Chicago Botanic Garden. From studying soil to banking seeds, from restoring habitats and protecting endangered plant species to developing new ones, Garden scientists are fighting plant extinction, pollution, and climate change through diverse and exciting research.

Rooting for Native Plants

Undercover Science

Julianne Beck —  October 25, 2016 — Leave a comment

Competition is heating up in the western United States. Invasive and native plants are racing to claim available land and resources. Alicia Foxx, who studies the interplay of roots of native and invasive plants, is glued to the action. The results of this contest, says the plant biology and conservation doctoral student at the Chicago Botanic Garden and Northwestern University, could be difficult to reverse.  

Cheatgrass, which is an aggressive, invasive plant with a dense root system, is spreading quickly across the west. Native plants, and their delicate seedlings that lead to new generations, are getting squeezed out.

Foxx is one of the scientists working to give native plants a leg (or root) up. She hypothesizes that a carefully assembled team of native plant seedlings with just the right root traits may be able to work together to outpace their competition.

PHOTO: Alicia Foxx (left) participates in seed collection in Southeastern Utah.

Alicia Foxx (left) participates in seed collection in southeastern Utah.

“We often evaluate plants for the way they look above ground, but I think we have to look below ground as well,” she said. Foxx’s master thesis focused on a native grass known as squirreltail, and her hypothesis addressed the idea that the more robust the root system was in a native grass, the better it was at competing with cheatgrass. Now, “I’m looking more at how native plants behave in a community, as opposed to evaluating them one by one… How they interact with one another and how that might influence their performance or establishment in the Colorado plateau.”

In the desert climate, human-related disturbances such as mining, gas exploration, livestock trampling, or unnaturally frequent fires have killed off native plants and left barren patches of land behind that are susceptible to the arrival of cheatgrass.

PHOTO: Seedlings in the growth chamber.

Seedlings in the growth chamber

“Some of our activities are exacerbating the conditions [that are favorable for invasive plants]. We need to make sure that we have forage for the wildlife and the plants themselves, because they are important to us for different reasons, including the prevention of mudslides,” she said. “We are definitely confronted with a changing climate and it would be really difficult for us to reverse any damage we have caused, so we’re trying to shift the plant community so it can be here in 50 years.”

Garden conservation scientist Andrea Kramer, Ph.D. advises Foxx, and her mentorship has allowed Foxx to see how science theories created in a laboratory become real-life solutions in the field. “I think I’m very fortunate to work with Andrea, who works very closely with the Bureau of Land Management…it’s really nice to see that this gets replicated out in the world,” said Foxx. Seeds from their joint collecting trip in 2012 have been added to the Garden’s Dixon National Tallgrass Prairie Seed Bank.

Alicia Foxx loves to walk through the English Walled Garden when she steps away from her work.

In a way, Foxx is also learning from the invasive plants themselves. To develop her hypothesis, she considered the qualities of the invasive plants; those that succeeded had roots that are highly competitive for resources. After securing seeds from multiple sources, she is now working in the Garden’s greenhouse and the Population Biology Laboratory to grow native plants that may be up to the challenge. She is growing the seedlings in three different categories: a single plant, a group of the same species together, and a group of species that look different (such as a grass and a wildflower). In total, there will be 600 tubes holding plants. She will then evaluate their ability to establish themselves in a location and to survive over time.

PHOTO: Seedlings: on the right is a sunflower (Helianthus annuus) next to a native grass (Pascopyrum smithii).

On the right: a sunflower seedling (Helianthus annuus) next to a native grass (Pascopyrum smithii)

There has been very little research on plant roots, but Foxx said the traits of roots, such as how fibrous they are, their length, or the number of hair-like branches they form, tell us a lot about how they function.

“I’m hoping that looking at some of these root traits and looking at how these plants interact with one another will reveal something new or solidify some of the theories,” said Foxx.

She aims to have what she learns about the ecology of roots benefit restorations in the western United States. It is possible that her findings will shape thoughts in other regions as well, such as the prairies of the Midwest. Future research using the seeds Foxx collected could contribute to the National Seed Strategy for Rehabilitation and Restoration, of which the Garden is a key resource for research and seeds for future restoration needs.

The Chicago native has come a long way since she first discovered her love of botany during high school. After completing her research and her Ph.D., she hopes to nurture future scientists and citizen scientists through her ongoing work, and help them make the connections that can lead to a love of plants.

©2016 Chicago Botanic Garden and

Botanic gardens are looking at the ways that zoos are trying to save threatened and exceptional species—including whooping cranes, black-footed ferrets, and giants pandas—to see if their approach could be adapted and used to help save rare plant species.  

Over the past year, the Chicago Botanic Garden has been working with the Brookfield Zoo, Botanic Gardens Conservation International, and other institutions to modify management tools developed for zoo living collections for botanic garden use.

Scientists and curators at botanic gardens and zoos both manage populations—of plants and animals, respectively—for conservation purposes. This type of conservation, outside the habitat of the plant or animal, is called “ex situ” (off site) conservation. There is a lot of similarity between the best practices for living collection management at zoos and botanic gardens, but to date, we have not often worked together to adapt tools developed for animals to plants and vice-versa.

This may be due, in part, to the fact that plant conservation relies heavily on seed banking. Storing seeds is an effective conservation method for most plant species, and avoids many of the problems associated with growing plants in the garden. (Living plants may be killed or injured by diseases and pests, may hybridize with other plants in the garden, and over several generations, may change genetically in ways that make them less suited for reintroduction.) However, many plant species are not well-suited for seed banking, either because their seeds are recalcitrant—they cannot be dried and frozen—or because some plants rarely produce seeds. Living collections offer an alternative conservation method for these “exceptional” species.

PHOTO: Conservation scientist Dr. Andrea Kramer hand-pollinates a Brighamia insignis specimen.

Conservation scientist Dr. Andrea Kramer hand-pollinates a Brighamia insignis specimen.

In this recent paper in the American Journal of Botany, we describe an approach that botanic gardens could adopt to improve their management of rare plant species—based on the “studbook” approach zoos use for animals. We hope to test this approach in two rare plants next year: Quercus oglethorpensis (Ogelthorpe oak—found only in the southeastern United States), and Brighamia insignis (Ālula—found only on Kauai in Hawaii).

PHOTO: Quercus oglethorpensis.

Quercus oglethorpensis
Photo ©2015, Virginia Tech Dept. of Forest Resources and Environmental Conservation

PHOTO: Brighamia insignis.

Brighamia insignis

It is clear that zoos and botanic gardens have much to learn from each other, and we hope to work more with our zoo counterparts in the future.

©2016 Chicago Botanic Garden and

Plants of Concern volunteers come from many backgrounds, but all share a common denominator: not surprisingly, they are concerned about plants.

PHOTO: The beautiful Cypripedium candidum, one of the many rare plants Plants of Concern monitors.

The beautiful Cypripedium candidum, one of the many rare plants Plants of Concern monitors

So concerned are these citizen scientists, in fact, that they are willing to traipse all over our region of northeast Illinois and northwest Indiana to monitor hundreds of rare, threatened, and endangered species in a variety of habitats. Their findings help plant scientists understand and work to mitigate the effects of climate change, as well as encroaching urbanization and invasive species.

Here are profiles of three Plants of Concern volunteers, in their own words. We hope these stories inspire you to consider joining their ranks. Another Plants of Concern volunteer recently blogged about her experience as a newbie with relatively little plant-related expertise, and you can find that post here.

Kathy Garness

PHOTO: Kathleen GarnessBachelor’s degree from DePaul University in visual arts; master’s degree in religious education from Loyola University. Worked for many years as a director of religious education in the Episcopal church, in the commercial art field for more than a decade, and now as administrator and a lead teacher in a nature-based preschool. Earned a botanical art certificate from the Morton Arboretum. Helped develop the Field Museum’s Common Plant Families of the of the Chicago Region field guide.

I started volunteering with Plants of Concern in 2002. I learned about POC after a chance meeting at the REI store in Oakbrook with Audubon representative and Northeastern Illinois University professor Steve Frankel. Steve told me about POC, and that meeting changed my life in a huge way.

I monitor 25 species at nine different sites, including Grainger Woods in Lake County; Theodore Stone in Cook County; several high-quality prairies in Cook, DuPage, and McHenry Counties; and Illinois Beach State Park in Zion. POC assigned them to me because of my interest in and ability to ID many species of native orchids (there are more than 40 just in the Chicago region). But I monitor other plants besides orchids.

PHOTO: Kathy Garness leads a tour at Illinois Beach State Park.

Kathy Garness leads a tour at Illinois Beach State Park. Photo by Michael Rzepka, Forest Preserve District of Will County

Volunteering for POC differs from most other volunteering positions I’ve held [at the Art Institute and the Field Museum] because there is a lot of independence, and also much more technical training. This citizen science is vital to the sites’ ecologists—most agencies don’t have enough funding to pay staff to collect the valuable, detailed information we do. Volunteers also are highly accountable, and you need to be really sure about your species. That knowledge comes over years of participation, but even if someone just participates once, and goes out with a more experienced monitor, the information collected helps fill gaps in our understanding of our natural areas. And it’s way more fun than playing Pokémon, once you get the hang of it!

My advice for prospective volunteers is to go out first with more experienced monitors. Learn from them—they are better than a digital (or even paper) field guide. Clean your boots off carefully beforehand; don’t track any weed seeds into a high-quality remnant. Observe more than just the monitored plants—look for butterflies, listen for birds, notice the dragonflies and frog calls. Tread lightly and watch your step. Bring extra water and a snack. Use bug spray. Learn what poison ivy is but don’t be afraid of it—just don’t get it on your skin! No matter how hot it is, I wear long trousers, long sleeves, a broad-brimmed hat, and thin leather gloves. Never, ever, go out in the woods alone. Let people know where you are going and when you plan to return. Watch the weather signs. Keep your cell phone charged and with you at all times.

Above all, enjoy this one-of-a-kind experience!

Fay Liu 

Bachelor’s degree in agriculture technology/animal sciences from Utah State University; master’s degree in food science from the University of Tennessee, Knoxville. Trained as a food-science researcher focusing on meat quality. Researched pork quality for a commercial pig farm/processing plant and a pig genetic company.

PHOTO: Fay Liu on a foray for Plants of Concern.

Fay Liu enjoys a foray. Photo by Plants of Concern

I have been volunteering with Plants of Concern since 2012. I am interested in nature and enjoying the outdoors, and this is a fantastic program for me. My family always spent time hiking and fishing on weekends. I grew up in Taipei, Taiwan, where we had easy access to mountains and the ocean—unlike in the Midwest. We also had a container garden on top of our four-story building, and I helped to take care of the plants.

For POC I primarily volunteer at Openlands, which is about 20 minutes from my house. However, I have also volunteered farther away, south to Will County, east to the city of Chicago, and north to Zion.

Plants of Concern involves many aspects of science: identifying target plants and knowing the plants surrounding them, locating target populations, and using statistical methods to measure populations. For me, the most fun thing is learning new things each time I come out to the field. Maybe it’s a new plant that I have never seen before, or a new hiking route. The most frustrating times are when it’s hard to find the target plant because the population is low.

The advice I have for prospective volunteers is to keep your curiosity alive!

Karen Lustig

Bachelor’s degree in botany from the University of Illinois Urbana-Champaign; master’s degree in botany from the University of Minnesota. Has taught botany at Harper College since 1987.

PHOTO: Karen Lustig on the prowl for Plants of Concern.

Karen Lustig on the prowl for Plants of Concern

I have been interested in plants since I can remember. My father loved to hike, and my mother was a gardener. Instead of moving furniture around, my mother moved plants. We spent a lot of time outside.

I have volunteered with Plants of Concern since its beginning. I monitored white-fringed prairie orchids with the National Fish and Wildlife Foundation and many other plants with the Nature Conservancy even before then. I knew people (still do) at the Chicago Botanic Garden, and I heard about the program from them, so it was sort of a transfer. I remember that when POC started, we worked in forest preserves. I understood why there was a desire to work in protected lands, but I said we needed to include other properties. And the program expanded beyond the preserves!

I actively monitor for POC at Illinois Beach State Park (IBSP) and also help out at Openlands when I have time. The forays are great fun. That’s my favorite thing: getting out there and being with other people and learning about new plants. At IBSP, visitors are expected to stay on the trail. Of course, most plants don’t grow right on it, but you can usually spot them. Once I was looking around for plants and saw this guy sort of thrashing around in the cattails. I reported him since he looked so bizarre out there, and it turns out he was a skipper [butterfly] expert taking samples for the Karner blue butterfly project. I met him later…a really nice guy, it turns out!

What makes Plants of Concern special is that it is so well run. The staff is quick on feedback and offers lots of help. The training programs are excellent. I’ve heard some terrific speakers, too. Other organizations sometimes don’t seem to have quite the staff or funding for their programs, which can make volunteering challenging. If I had to identify the biggest challenge as a POC volunteer, it would be the paperwork. With POC you can do the entry online, which helps. But filling out forms remains my least favorite thing to do…I just filled out a form [in August] for data collecting I did in May.

My advice to new Plants of Concern volunteers is to go to the workshops—even if you think you know the stuff. It’s amazing what you can learn. And when you first go out, it can be hard just to find the plants, even using a GPS, much less to know what to do when you find them. So go with experienced people!

Students at Harper College have volunteer workdays, and when mine return to the classroom after volunteering with POC groups, they always talk about how knowledgeable and interesting the volunteers are—and these are college environmental science students. It’s great that people can get together and share not just their knowledge but their enthusiasm through Plants of Concern.

poc-monitoring-flagsJoin the ranks of the dedicated people of Plants of Concern: volunteer today.

Plants of Concern is made possible with support from the U.S. Department of Agriculture Forest Service at Midewin National Tallgrass Prairie, Forest Preserves of Cook County, Openlands, Nature Conservancy Volunteer Stewardship Network, National Fish and Wildlife Foundation, and Chicago Park District.

©2016 Chicago Botanic Garden and

Expedition to Door County

Pati Vitt —  September 21, 2016 — Leave a comment

Last June, I headed up to Door County, Wisconsin, with Kay Havens, our director of plant science and conservation,  for a 31-day trip to undertake our annual fieldwork. “A month at the beach!” you say, thinking it such a treat! Well, yes and no.

Four undergraduate students in our REU program joined us to track literal life and death events in two plant populations on the dunes of Lake Michigan. The dunes can be more than 20 degrees Fahrenheit hotter than ambient temperatures, and we work in the interdunal swales, where no lovely breezes off the lake can reach us. It is often well over 95 degrees in the dunes, even if it’s a balmy 75 degrees in Sturgeon Bay. But, no matter—we are on a mission! On days with the hot sun both beating down and reflecting up from the sand, we observed, measured, and recorded the births, deaths, and reproductive successes of one of our favorite plants: the threatened pitcher’s thistle (Cirsium pitcheri). 

PHOTO: Pitcher's thistle (Cirsium pitcheri)

Pitcher’s thistle (Cirsium pitcheri)

We find every seedling we can, and place a flag next to it to help us keep track of the ones we’ve counted. We don’t want to miss a single one. Each seedling is a measure of successful reproduction for this monocarpic perennial. Monocarps—plants that only flower once before they die, are completely dependent upon producing as many successful offspring as they can, all in the quest to ensure that they just replace themselves. When all plants successfully replace themselves, a population is stable.

Just to replace yourself is a monumental undertaking for a plant that flowers once and then dies. Especially for pitcher’s thistle. The dunes are a harsh environment for a tiny baby plant. Many of them die—exposed to the heat, and without enough water to sustain them. We estimate that fewer than one in ten seeds germinate and survive each year, and in some years, only a small percent of those survive the winter to become a juvenile plant the next year. That means that each flowering plant must produce many seeds to replace itself. The good news? Generally, if a seedling survives to the juvenile stage, it has a much increased chance of survival to make it to the next stage—a vegetative plant—and the vast majority of those go on to reproduce at some point.

PHOTO: Kay Havens, ready to record data at Ship Canal Nature Preserve, owned by the Door County Land Trust.

Kay Havens is ready to record data at Ship Canal Nature Preserve, owned by the Door County Land Trust.

However, seed germination and seedling survivorship and growth depend upon two things: where you come from and where you live. To look at this, we took 100 seeds from each of our two study populations and grew them in “seed baskets” in our study garden at the Chicago Botanic Garden. We also grew the same number in seed baskets at their respective home sites. Regardless of population, they germinated and grew very readily in our study garden. But there were very stark differences at our study sites in Door County: seed germination was 39% at one site, but only 9% at the other.

PHOTO: Pitcher’s thistle seedlings sprouted in one of our seed baskets at the Ship Canal Nature Preserve.

Pitcher’s thistle seedlings sprouted in one of our seed baskets at the Ship Canal Nature Preserve. The pair of yellow-green “leaves” opposite each other are actually cotyledons, or seed leaves, and are the first photosynthetic organs to emerge from the seed during germination.

PHOTO: These are Pitcher's thistle seedlings that have grown very large under the favorable conditions of the test garden on the south side of the Plant Science Center.

These are pitcher’s thistle seedlings that have grown very large under the favorable conditions of the test garden on the south side of the Plant Science Center. In just one growing season, they have grown as large as plants three to four years old that grow under natural conditions.

Why the difference? Well, our first site is definitely more hospitable! Even we are happier to work here. It’s not nearly as hot, and the dune structure is more flat, so the breeze off the lake makes things more pleasant—for plants and people alike! And it appears to this observer’s eye that there’s more water available close to the surface here. This year, there are two large patches in the dune that have been perpetually damp. In contrast, our second population is literally high and dry, making life hard for the little pitcher’s thistle seedlings. How does this affect the prospects of these two populations overall? Stay tuned! We’ll let you know when we have finished our analysis of the long-term trends at these two very different sites.

One plant, two places—offering a fascinating glimpse of a life of contrasts.

©2016 Chicago Botanic Garden and

Last year, with great anticipation, I became a plant sleuth. Tired of my relative ignorance of plants, I wanted to learn more about them and become more productive while being outdoors, which I am—a lot. So I joined Plants of Concern as a volunteer.

Based at the Chicago Botanic Garden, Plants of Concern (POC) was launched in 2001 by the Garden and Audubon–Chicago Region, supported by Chicago Wilderness funding. The program brings together trained volunteers, public and private land managers, and scientists, with the support of federal, state, and local agencies. For more than 15 years, the POC volunteers—a generally mild-mannered but formidable force of citizen scientists—have monitored rare, threatened, and endangered plant populations in our region to assess long-term trends. 

PHOTO: On this foray with Plants of Concern, we marked endangered plants with flags.

On this foray with Plants of Concern, we flagged and counted targeted plants.

Broadly speaking, the data we plant detectives collect provides valuable information. Land managers and owners can use it to thoughtfully and effectively manage land, protecting ecosystems that have helped to support us humans. Scientists and students can use the data to help them understand rare-species ecology, population genetics, and restoration dynamics. The implications are significant, with climate change an important factor to consider in altered or shifting plant populations.

I quickly discovered that many POC volunteers are way more plant savvy than I am. Fortunately for me, the organization welcomes people of all knowledge levels. Our goal is to gather information about specific plant populations, ultimately to protect them against the forces of invasive plant species and encroaching urbanization. And our work is paying off. Some POC-monitored plant populations are expanding—reflected in the removal of those species from state lists of threatened and endangered species.

We are (mostly) unfazed

Yes, we POC volunteers are a hardy lot. Stinking hot, humid days on the sand dunes near Lake Michigan or the Midewin National Tallgrass Prairie? We drink some water and slap on sunscreen. Steep ravines with loose soil and little to hang onto? Bring it on! An obstacle course of spider webs? No prob—well actually, those are a real drag. Last time I wiped a web from my sweaty face I muttered, “There ought to be a word for the sounds people make when this happens.” (Oh, right, there is: swearing!) But webs slow us down for just a few seconds before we resume the business at hand.

PHOTO: Amy Spungen out in the field, volunteering for Plants of Concern.

Author’s note: Some projects are a little more involved than others. This was one of those.

That business is hunting down and noting targeted plants, and continuing to monitor them over time. Our tools are notebooks, cameras, and GPS mapping equipment. In northeast Illinois and northwest Indiana, we volunteers, along with Garden scientists and staff from partner agencies, have monitored 288 species across 1,170 plant populations at more than 300 sites, from moist flatwoods to dry gravel prairies to lakefront beaches and sand savannahs. Collectively, since Plants of Concern began, we have contributed 23,000 hours of our time in both the field and office.

“Northeastern Illinois is incredibly biodiverse, and some people are surprised to learn that,” says Rachel Goad, who became manager of the program in 2014, after earning a master’s degree in plant biology from Southern Illinois University–Carbondale. “There are so many interesting plant communities and lots of really neat plants. For people who want to learn more about them and contribute to their conservation, Plants of Concern is a great way to do that. We rely on interested and passionate volunteers—we would not at all be able to cover the area of the Chicago Wilderness region without them.”

From the minute I met up with a POC group during my first foray last October at Illinois Beach State Park, I was hooked. Though I often feel like a dunderhead as I bumble around hunting for my assigned plants, wondering why so many plants look so much like other plants, I love it. One reason is the other, more experienced volunteers and staff leaders, who generously help me as I ask question after question after question.

PHOTO: Plants of Concern foray leader Jason Miller: a man of ultimate patience.

Plants of Concern foray leader Jason Miller: a man of ultimate patience—with me.

Some of us volunteers are walking plant encyclopedias, while others (that would be me) have been known to call out, “Here’s a dwarf honeysuckle!” only to have foray leader Jason Miller, patience personified, respond gently, “Actually, that’s an ash seedling.”

            “Hey Jason,” I say a couple of weeks later, trying to look unconcerned. “Do you guys ever fire volunteers?”

            “Yes, but it’s rare,” he replies. “Of more than 800 volunteers over all the years, maybe five at most—and not recently—were dropped from the program.” He indicates that it’s more a mismatch of interests than a few flubbed newbie I.D.s that can lead to that very rare parting of ways. Miller also acknowledges that some plants are especially tricky, such as sedges (Carex spp.) and dwarf honeysuckle (Diervilla lonicera). “Some species are straightforward,” he says, “and others are harder to monitor.”

I’m not hopeless—I’m just growing

I decide to interpret my POC foibles as “opportunities for growth,” since slowly but surely, I am starting to catch on. The information sheets distributed as we gather before a foray are making more sense to me. I am getting better at noticing the tiny serrated edges of a leaf, or compound rather than simple umbels, or any number of other subtle ways plants may distinguish themselves from others.

That gradual but steady learning curve fits with what Goad describes as “the most critical characteristic we look for in volunteers: someone who really wants to learn.” She adds that diversity among POC volunteers strengthens the program as a whole, helping to build a “constituency for conservation” among people not traditionally associated with environmental activism.

PHOTO: Plants of Concern volunteers watch a presentation before heading out on foray.

Volunteers get a debriefing before heading out on a foray. Newbies go with experienced volunteers.

Goad and her staff, which includes research assistants Miller, Kimberly Elsenbroek, and Morgan Conley, work to match volunteers with something that fits their level of expertise. This “hyper-individualized” approach to training POC volunteers can limit the number of participants per year, currently about 150 (a year-end tally firms up that number). “We tend to fill up our new volunteer training workshops, which means that our staff is always working at capacity to get those folks up and running,” says Goad. “I encourage people to sign up early if they know they are interested.”

Another challenge for managing the volunteer program, Goad adds, is that “any time you have a whole bunch of different people collecting and sending in data, there has to be a really good process for checking it and cleaning it and making it useful.” Over the years, the program has improved its volunteer training and data processing so that errors are minimized.

Get ready, get set—learn!

Miller was majoring in environmental studies at McKendree University when he came to POC in 2013 as an intern. Now, among other things, he’s in charge of volunteers at the Openlands Lakeshore Preserve. Like Goad, he says the main requirement in a volunteer is a willingness to learn. “We want someone who is interested in plants and their habitats,” he said. “If so, whenever you can help us out, great! We realize you’re giving your time to do this.”

Goad hopes to expand POC into other parts of Illinois over the next decade. “There are populations across the state that should be visited more regularly,” she says. “We do a lot with the resources we have, but it would be great to expand, and to do so, we need to continue to be creative about funding.” With partners that include forest preserve districts, county conservation districts, many land trusts, and nonprofit agencies that own land—and with its knowledge about challenged plant populations—POC is uniquely positioned to help facilitate collaboration.

PHOTO: Plants of Concern volunteers.

The world’s best volunteer group

Whatever the time frame, wherever Plants of Concern volunteers are found, the hunt is on. Some days are glorious for us plant sleuths, such as my first foray last fall. We hiked over the dunes, Lake Michigan sparkling beside us, the cloudless sky brilliant blue. A light breeze kept us cool as we spread out, flagging the targeted plant—the endangered dune willow (Salix syrticola)—which was readily apparent and accessible. Then there are days like one this past June, when the sun beat down over a hazy Lake Michigan, humidity and temperatures soared, and my assignment was a steep, prolonged scramble over ravines to find and flag my elusive target, the common juniper (Juniperus communis). By the end of it I was, to coin a phrase, literally a hot mess—but a happy and triumphant one, for I had indeed been able to plant a few flags.

PHOTO: planting flags on a foray to monitor slipper orchids.Perhaps it’s time for you to sleuth around and plant a few flags, too! Visit Plants of Concern and find out how to join.

Plants of Concern is made possible with support from the U.S. Department of Agriculture Forest Service at Midewin National Tallgrass Prairie, Forest Preserves of Cook County, Openlands, Nature Conservancy Volunteer Stewardship Network, National Fish and Wildlife Foundation, and Chicago Park District.

©2016 Chicago Botanic Garden and