Image of American burnweed and Jerusalem artichoke

Life in the Burnweed

American burnweed doesn’t care what you think. But you should think more about this plant anyway. It just might surprise you!
American burnweed seeding
American burnweed (Erechtites hieraciifolius) towers above the meadow, radiating in the autumn light.

American burnweeds are free spirits, throwing caution and seed to the winds and popping up irreverently in new places each year. And why shouldn’t they? Life is short when you’re an annual plant who must sprout, flourish, reproduce, grow old and die in one season. It’s especially precarious when you’re an annual plant under constant threat of being yanked and sprayed.

Burnweeds don’t care what you think, rising above—sometimes even seven feet above—all the insulting remarks made about their worthlessness and unconventional appearance. They dare to sport bold leaves and tiny flowers, an anatomical combination that seems to have grossly offended the human arbiters of floral and faunal value past and present. In 1944, Alabama botanist Roland Harper admitted that burnweeds were harmless to food crops before besmirching them anyway as “one of our most useless and disreputable-looking weeds, very unattractive in appearance, and ill-scented besides.” Today, university extension sites still chastise burnweed for being, as one detractor put it, an affront to “the aesthetic attributes of the landscape.”

The bees, wasps, and butterflies in my habitat would beg to disagree with those assessments of one of their favorite late-summer plants. Far from being “useless,” burnweed flowers provide nectar for many insects.

Common buckeye on burnweed
Apparently those who bemoan burnweed as unattractive have never looked closely enough to see the beautiful common buckeyes feeding on the plants.
Mason wasp nectaring on burnweed flower
Burnweed is such an important fall nectar plant that author and pollinator expert Heather Holm even recommends it in her Eastern guide to wasp pollinators. This mason wasp, Pseudodynerus quadrisectus, is among many wasps visiting the burnweed in our meadow.
Summer azure on burnweed flowers
The cylindrical flowers might seem small to us, but they are just the right size for diminutive summer azures.
Bumblebee on burnweed flowers
Burnweed is sometimes described as a nectar plant for small bees, but bumblebees also visit the blooms in the evening.

Flowers aren’t the only hot spots. Because of their wide, sturdy leaves and abundant growth, burnweeds offer perfect substrates for courting and mating. Much drama unfolds in the understory of these plants we so often overlook. “Femme fatale” fireflies, so named for their habit of eating males, perch on the leaves. Zabulon skippers  stop by to court and mate, attracting the attention of interlopers who try to aggressively disrupt their dalliances.

Firefly perching on burnweed
A firefly in the Photuris genus perches on a burnweed leaf under a walnut tree. Some females in this group are known as femme fatales because they mimic the flashes of females of other species. When unsuspecting males respond, thinking they are about to mate, the femme fatales eat them. Photuris fireflies are not as chemically defended as other species, so such trickery helps them acquire much needed toxins.
Skippers mating on burnweed
Burnweed was a pickup joint for Zabulon skippers in early August, when I saw many love affairs play out on the leaves. This particular pair couldn’t get any peace from hangers-on who repeatedly tried to butt in.

Burnweeds are wild pioneers, proliferating in the wake of fires or other disturbance; in our habitat, they seized their opportunity after our next-door neighbor removed dozens of pine trees and sunlight filled the edge of our land for the first time. When they find their way into newly planted patches with young seedlings, I occasionally pull a few to give the babies of other species more breathing room. But most of the time, the burnweeds are free to travel through the meadow, along the fence line, and in all the wood-chipped areas where we’ve smothered invasive grasses to make way for natives.

Rather than marring the view, they bask in the autumn light, releasing seeds that encircle their neighbors in a glowing halo.

Blue waxweed covered in burnweed seeds
For the past week, the blue waxweeds (Cuphea viscosissima) have been aglow in white fuzz. Waxweeds are covered in sticky hairs, effectively gluing the burnweed seeds to their stems.
Jerusalem artichoke and burnweed
Burnweed embraces a Jerusalem artichoke in a spot formerly known as “the mugwort patch.” Both plants are among a mixture of species that have helped crowd out the invasive mugwort without herbicides.

Burnweed might even assist in cleaning up our messes; a Japanese study found that the plant gains high levels of nitrogen by assimilating nitrogen dioxide, which is formed by the burning of fossil fuels. Along with a few other plants tested—including species of eucalyptus, poplar, magnolia, and tobacco—burnweeds may act as a “sink” for the harmful air pollutant. “These plants are ecologically important,” the researchers noted, “and suited for use as vegetation in roadside green zones and parks to reduce the atmospheric concentration of NO2.”

But maybe we don’t need a scientific paper to extol the virtues of burnweed when we have insects like this little white-crossed seed bug to remind us. He’s a new friend I made this summer thanks to the burnweed bounty, and I look forward to making more such discoveries wherever the plants decide to grow in the coming years.

White-crossed seed bug on burnweed
The white-crossed seed bug looks like some other insects I’ve known, such as milkweed bugs, but eats seeds of ragworts and, apparently, burnweeds.

As an early-succession species, burnweeds lay the groundwork for whatever comes next, eventually dwindling in the face of increased competition and shade. Why not enjoy and appreciate them as their progeny floats like snow over the waning meadows, seeing each bit of fluff as a promise that life will emerge again next spring?

Watch more video clips of life in the burnweed on The Humane Gardener YouTube channel.

65 thoughts on “Life in the Burnweed”

  1. good morning in the garden with all the pollinators like bees and of course butterflies my favorite is the monarch butterfly with its toxic wings that they oppose with warning or apoesematic coloration they are right now making their annual migratory cycle from Mexico throughout the United states traveling thousands of miles up to 5 generations make that journey please keep me posted on upcoming emails. and did you know that the first pollinators to evolve were actually flies and beetles. e en our common house fly that we kill with a newspaper. i have been studying creatures and botany since i was a kid with the beautiful flora and fauna.

    1. Hi Bryan, yes, it is a beautiful time of year with the monarchs and other migrating animals coming through! 🙂 Thanks for reminding us about the important role of flies and beetles as pollinators. I wish more people knew that!

    2. Burnweed is a beautiful plant. I have planted it or I should say help it, grow in one of my side gardens. Almost all of the plants are at least seven feet tall. Am I mistaken or do the leaves turn over when the plant gets overheated or had enough sun for the day. Thank you..Ed

    3. I have released four monarchs this year. I have three chrysalis At the moment. And I have 7 caterpillars growing! In different stages.
      I started the year of Covid. I’ve learned a lot since then.
      Looking forward to these 3 emerging in about a week. Then I’ll have the rest as they grow, hopefully not losing any. I did have one monarch that fell or something and his wings were crippled. All 4 that I have released have been males, they fly around my yard all summer after that. Hoping to get some females out of this batch but the males are definitely the dominant of the two as far as how many seem to be laid.
      I came across this because I have but weed in my yard. I feed all winter, here in Louisiana . I feed the bugs, bees and the birds love my yard because I have areas I do not mow and a variety of goodies for the birds and the bees!
      Thanks. I just wanted to share. I absolutely adore Monarchs, although basically I love anything in nature on Gods green earth!
      Patty Moore

  2. They are a great addition to the golden rod and wild asters that bloom on my front yard ditch that was sprayed by Duke power a while ago.

  3. Wow! What a beautiful article! Informative and delightfully written in every way. I’m running outside to see if we’re fortunate to have any growing on our property. Thank you!

      1. I found one this morning and six more this afternoon when I returned to my garden after reading your lovely article.

      2. I found one this morning and six more this afternoon when I returned to my garden after reading your lovely article.

  4. Thank you so much for the American Burnweed article. I have pulled so much of this in 2022 not knowing anything about it, except WEED. There is a bit of it in the meadow across the street and now quite a bit between my back fence and the ravine behind us. You have armed us with the knowledge to let it be.

  5. I love to read about the wildlife value of what most people consider weeds. I have left a few of these plants on my property. We have no near neighbors, so no one to complain, and the insects appreciate them. Thanks for the post.

  6. Wonderful piece – and great photos. Another focus on letting the non-human world do what it does best, which is to take care of itself, even attempt to fix our mistakes! Thanks again.

  7. Hi Nancy
    I always enjoy your articles!
    It just seems like everything has it’s purpose…. I certainly have lots of places they may, and do, grow.
    It’s a busy time of year for us (Ruth & I) and I am anxious to get Fall chores to get done so I can begin planting a plethora of trees that I’ve been growing on.
    Perhaps we’ll see you at MANTS (in Baltimore) ?!?!
    Bob Davis
    Lancaster County Garden Club
    PS …For some reason the pictures do not come up for me.

    1. Hi Bob! Thank you! I hope you are Ruth are doing well and having a lovely start to fall. It is so beautiful – a perfect time for tree planting! I haven’t been to a MANTS show yet, but it would be fun to stop by this year.

  8. Thank you for this enlightening post! I’ve been wondering what this roadside “weed” is, pondering if it’s an invasive that needs to be pulled, but hadn’t yet bothered to look it up. I now know it by name and can appreciate all the ecosystem services it provides. 🙂

  9. I love this post and your big-hearted appreciation for all the amazing flora that humans tend to discount and discard.

  10. I really enjoy reading your essays. Ever since you gave a presentation to the Reston Garden Club years ago, I have followed your posts. Reading them leaves me in a calm and meditative peace.

  11. Thanks so much. We had a whole field of burn weed in a recently cleared area – yes on our neighbors land, and didn’t know what to think. So helpful.

  12. Thank you Nancy! We have burnweed around our property. I have long been suspicious thinking it’s another non native thistle or something of the sorts. We will continue to let it do it’s thing and help support our little friends. Grateful for your educational support. Be well

  13. I spent a ton of time watching the activity on this plant when the sun was setting behind it. I could see the tinys flicks of leaf bits seeming to be tossed every other second. SOoo many visitors. On each one there is ALWAYS a “daddy long legs”. I had read the Japanese article I found sited on a website when I googled the plant when it first showed up and I didn’t recongnize it. When I saw that it was actually beneficial they became part of the family. I had lady bug larva and pupa partying on the leaves as well as on poison ivy underneath an oak.

  14. I know this plant, but not this way! Wow! Now, I am forever going to look at it differently. Thanks so much for opening my eyes every time I read what you have to say. Don’t ever stop! : )

  15. Weeds ad bees have been given such a ad wrap for so long. It will take years of focused and deliberate effort to unravel this disservice and ham.

  16. Hola Nancy! Spring’s beautiful down here. Our current guests have included some lizards, bumblebees and a giant hummingbird. Thank you for teaching us to embrace the wonders of nature in our own backyards.

  17. Thank you for this. iNaturalist ID’d it as fireweed and also American burnweed. I have a huge patch of it, behind a milkweed patch: I’ll let all the fuzz fly!

  18. Its a volunteer in my petunia pot. I thought it is lovely with greenery so I have not pulled it yet!

  19. Our situation was like yours—cut down pines and then burn weed appeared in mass—probably several hundred now marching toward the side of our house—we are intrigued by them and so glad to hear that pollinators love them as we are beekeepers and gardeners. Looking forward to their blooming event!

  20. Only because of this article, when I go by burnweed now, I see it with different eyes. Thanks!

  21. I’ve had this plant crop up along the edges of my yard for years and have always pulled it out—which is easy to do, it comes right up. I guess I’ll stop pulling it up after reading this. The More You Know and all that. Thank you for the info!

  22. I appreciated the information in your article. Having moved to a more rural area I am seeing more plants that I don’t know. We lived in the suburbs, yuck. Trying to attract more butterflies and pollinators I want to keep the plants they will like. The burnweed will stay as many of the other native plants will. Thanks again! Blessings!

  23. Hello Nancy!
    I have left several little communities grow here and there on my property and seeing with woe that they had reached seven feet on both of my neighbors’ borders came in to discern what benefit could be attributed to them. So I will go forth (lol) armed with knowledge which I will deliver with flowery words.
    THANK YOU!

  24. Thank you! This was just the justification I needed to leave the volunteer in the middle of my prairie garden!

  25. I just discovered this amazing plant. Thank you for the beautiful and informative article and pictures and the interesting comments.

  26. We see goldfinches going for the seed around here in NJ. It’s a cool show watching the Burnweed sway when they land.

    1. That’s so much fun!!! When I say burnweed and thistle stems swaying about, I always know to be on the lookout for the birds my dad use to call “canaries”! 🙂

  27. I’d like to collect the seeds and release them near highways so the plants would grow where there is more nitrogen dioxide than in my back yard. Is this possible?

  28. Just wondering about the “burn” part of the name. What burns? Our skin if we touch it? More generally, some influencer should propose a name change for the “weed” part of native plant names. Pokeberry, burnleaf, butterfly flower, etc.

  29. Some background: My special patio (30’X40’) with my container garden of flowers of which I plant in the spring & break down each fall has a small perimeter of hostas’, clematis, azaleas, butterfly bush and holly- all hardy perennials! Unexpectedly, an unusual weed sprung up this late summer! Curiosity made me wait to see what would develop and upon taking a photo & goggling it, I found your fascinating article. And now as I ruminate in my little peaceful place each morning, I will have an even greater appreciation of the smaller creatures in my special place! P. S. I wonder why I haven’t seen any mention of American Fireweed in the Missouri Conservation Magazine that I read cover to cover each month..

  30. I feel like native plants are not the most popular things for your average gardner as they appeal more to wildlife, etc. than to the “average” gardner. I continue to learn how I can become more a part of all life, rather than trying to appeal to the popular or newest human created plant/trend. I am more and more pulled into the native plant “family” and welcome everyone else to take a good look at this option.

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