Menu
Sign In Search Podcasts Libraries Charts People & Topics Add Podcast API Blog Pricing
Podcast Image

Stuff You Should Know

The Fascinating History of Dandelions

20 Mar 2026

Transcription

Chapter 1: What are the surprising benefits of dandelions?

0.031 - 28.08 Unknown

This is an iHeart Podcast. Guaranteed human. I'm Lori Siegel, and on my new podcast, Mostly Human, I'll take you to some wild corners of the tech world. I'm about to go on a date with an AI companion at a real-world cafe right here in New York City. There's no playbook for what to do when an AI model hallucinates a story about you. Mostly Human is your playbook for how tech can work for you.

0

28.06 - 31.844 Josh Clark

Anyone can now be an entrepreneur. Anyone can build an app. And it's very empowering.

0

32.124 - 37.129 Unknown

Listen to Mostly Human on the iHeartRadio app, Apple Podcasts, or wherever you listen to your favorite shows.

0

44.816 - 54.085 Josh Clark

This is one of the most dramatic events that really ever happened in New York City politics.

0

55.6 - 66.302 Unknown

I screamed, get down, get down. Those are shots. A tragedy that's now forgotten. And a mystery that may or may not have been political, that may have been about sex.

66.322 - 73.035 Josh Clark

Listen to Rorschach, Murder at City Hall on the iHeartRadio app, Apple Podcasts, or wherever you get your podcasts.

75.428 - 86.206 Unknown

In 2023, Bachelor star Clayton Eckerd was accused of fathering twins, but the pregnancy appeared to be a hoax. You doctored this particular test twice, Ms. Owens, correct?

86.226 - 94.876 Chuck Bryant

I doctored the test once. It took an army of internet detectives to uncover a disturbing pattern. Two more men who'd been through the same thing.

95.116 - 96.779 Unknown

Greg Gillespie and Michael Marancini.

Chapter 2: How did dandelions become known as weeds?

208.969 - 231.559 Josh Clark

And we want to thank Sarah Andrews from Idaho because Sarah is a listener who sent this in. Nice. Very nice. Thanks a lot, Sarah. Every time I hear Idaho, I'm reminded of that silly T-shirt that said, Idaho, Udaho. Do you remember that one? I never saw that one. What was that one? There was a company called like Dangerous T-shirts or something like that.

0

231.599 - 254.931 Josh Clark

And they had like, man, they were killing it with the crazy T-shirts for a while in like the early 2000s. Was that like, instead of saying coke, it would say, you know, poke? Or cocaine? Yeah, that kind of thing? Yeah, kind of. Sometimes more original than that, but yeah. They were coveted for a little bit among people who liked Incubus and stuff like that.

0

254.911 - 271.992 Josh Clark

I couldn't even think of a song, so that's not me. Okay, so let's get back to Dandelions. I don't know how we ever get off track. It's kind of strange, but it happens from time to time, and it just happened, Chuck. So let's stop it from happening right now.

0

272.309 - 299.093 Josh Clark

Right, because dandelions, as you will see, have had a long, rich history that we're going to talk about in depth as a medicinal plant, as an edible plant, as a wonderful pollinator. And it was recast as a villain, as a weed to get rid of. But you need only look at the history of the dandelion, the fact that it was brought to North America by colonists.

0

299.073 - 327.233 Josh Clark

to kind of underscore the fact that we wanted the dandelion here. Right. And it's important to say that they brought it here on purpose. I saw somebody point out, like, it didn't hitch a ride. It was, like, purposefully brought here. And the idea that dandelions suck is a really recent development, especially compared to how long people valued and prized dandelions. I just find that fascinating.

327.714 - 327.814

Yeah.

327.794 - 354.713 Josh Clark

For sure. This thing is about 30 million years old, native in sort of Atlantic Europe all the way to Siberia. And in the northern hemisphere, you're going to know a dandelion because between March and October, you're going to see these beautiful yellow flowers. You'll see some what's called a rosette, which are these very short level ground stems that grow in a circular pattern.

354.693 - 369.001 Josh Clark

And then these little slender green hollow stalks, you know, 2 to 20 inches. But usually, at least around here, the dandelions are, I don't know, like 8 inches. Yeah, that seems about right. That's my experience as well.

370.003 - 370.103

Yeah.

Chapter 3: What historical uses did people have for dandelions?

0

425.534 - 447.924 Josh Clark

Yeah, and that vortex not only makes it travel up and out and away in such a way that if it was shaped any differently, it wouldn't do that. But if that little thing lands on water, that same vortex is going to form a little air bubble around it and protect it. Yeah. One of my prized possessions is this dandelion puffball encased in resin. And it's like the real deal.

0

448.444 - 468.971 Josh Clark

And I've never understood how it worked, but it turns out that if you actually take a dandelion puffball and actually not just put water in it, but submerge it in water, the puffball does not, it doesn't collapse. Isn't that nuts? It's amazing. I think so too. So that's just one of the many amazing things we're going to reveal today on Stuff You Should Know.

0
0

471.923 - 491.226 Josh Clark

Did I wander into the wrong show? No. Well, we should tell everybody it's 10 a.m. and we usually record at 1. So I'm a much different person at 10 a.m. You're a news anchor, apparently. So I mentioned yellow. They're not always yellow. They can be orange. They can be white. They can be kind of purpley peach.

492.127 - 517.741 Josh Clark

They open in the morning and close in the evening, which is given them the name the shepherd's clock. And they do that to preserve pollen and keep that pollen safe for the next day, which also makes it, and this is one of my favorite words, photonasty. Oh, that's a great word. Yeah. Plants open and close with the setting and rising of the sun. Yeah. It's called photonasty. Huh.

517.761 - 543.017 Josh Clark

I saw like a time lapse. Actually, it wasn't a video. It was just a series of photos of the dandelion flower opening and closing over the course of the day. I found I ran across a word from researching this that I'd never heard before that I absolutely love. Dandelions, like you said, are edible. They're used in cooking their culinary plant, which makes them a pot herb. One word, a pot herb.

543.618 - 564.081 Josh Clark

Isn't that awesome? What a great homey little like I just imagine, you know, hobbits using that word. Yeah, hobbits and my wife. Oh, does she call them potterbs? You've heard that before? Oh, yeah, yeah. I told her we were talking about dandelions today, and she was just like, oh, are you going to talk about this, this, this, this, this, this? She's like, oh, the famous potterb?

565.023 - 584.247 Josh Clark

It's also another kind of clock. You know, I already mentioned the shepherd's clock because the opening and closing it at the sunrise and sunset. But those little seed heads are called dandelion clocks. And that is from the old, you know, you make a wish when you blow the dandelion and you scatter those seeds is sort of a long, rich childhood tradition.

Chapter 4: How do dandelions contribute to the ecosystem?

584.227 - 609.897 Josh Clark

But apparently the number of puffs it takes to empty that thing is what time it is. So it can, I haven't tested this out. I don't know if this is rock solid science, but that's a sort of a thing. Hmm. That's pretty neat. Yeah. And one other thing about those papuses and the seeds that are attached to them, there's a long standing, I guess, kind of urban legend that,

0

609.877 - 632.965 Josh Clark

or maybe rural legend, that they can travel up to 100 kilometers, 62 miles. And that does not seem to be the case, even though you'll see that stat absolutely everywhere, including some legitimate places. But Kyle helped us with this, our British buddy. And he found that a 2003 study, which is the most recent you can find,

0

632.945 - 655.999 Josh Clark

On this is that just one in 7,000 Papuses travels more than one kilometer. So just leave 100 kilometers out of the whole equation. Yeah. And Kyle told us that because he's from England. But for our North American listeners, we're talking 320 something feet if it's 100 kilometers and about three and a half feet for a meter.

0

656.502 - 681.04 Josh Clark

Yeah, and apparently 99.5% of all pappuses land just within 30 feet of the parent plant, which is also 10 meters. So, yes, if you ever hear that a pappus can travel 100 kilometers, you can be like, that's wrong. What you just said is wrong. I think like one did, and they framed that. Maybe that's the one you have in amber. Yeah. It's like that first dollar bill you make as a business.

0

681.1 - 682.342 Josh Clark

You put it into amber.

683.084 - 683.404

Yeah. Yeah.

683.705 - 705.503 Josh Clark

There's also a cool adaptation where after they flower, that little hollow stalk that the flower sits upon goes limp on the ground and is just sort of hiding there away from birds and stuff. And when they ripen up, they jump back up again and they're like, here we are. That's pretty cool. I think so, too. Do you want to take a break and come back and talk about where they got their name?

706.224 - 706.725 Josh Clark

Let's do it.

718.298 - 722.484 Unknown

I became a millionaire overnight, but lost everything that actually mattered. Wait a minute, Sophia.

Chapter 5: What nutritional benefits do dandelions offer?

779.454 - 785.267 Josh Clark

From iHeart Podcasts and Best Case Studios, this is Rorschach, Murder at City Hall.

0

785.347 - 789.075 Unknown

How could this have happened at City Hall? Somebody tell me that. Jeffrey Hood did it.

0

789.646 - 795.657 Josh Clark

July 2003. Councilman James E. Davis arrives at New York City Hall with a guest.

0

796.278 - 826.626 Unknown

Both men are carrying concealed weapons. And in less than 30 minutes, both of them will be dead. Everybody in the chambers ducked. A shocking public murder. I screamed, get down, get down. Those are shots. Those are shots. Get down. A charismatic politician. You know, he just bent the rules all the time. I still have a weapon and I could shoot you. And an outsider with a secret.

0

826.827 - 832.78 Unknown

He alleged he was a victim of blackmail. That may or may not have been political. That may have been about sex.

833.742 - 858.379 Josh Clark

Listen to Rorschach, Murder at City Hall on the iHeartRadio app, Apple Podcasts, or wherever you get your podcasts. I'm Lori Siegel, a longtime tech journalist. And consider my new podcast, Mostly Human, your bridge to the future. Anyone can now be an entrepreneur. Anyone can build an app. And it's very empowering. Each week, I'll speak to the people building that future.

858.599 - 862.363 Josh Clark

And we're going to break down what all of this innovation actually means for you.

863.664 - 883.702 Unknown

What I come to realize is that when people think that they're dating this AI companion, they're actually dating the companies that create this. We're experiencing one of the greatest tech accelerations in human history. And let's be honest, that can be messy. There's no playbook for what to do when an AI model hallucinates a story about you.

883.762 - 887.427 Unknown

But it's my belief that we should all benefit from this moment.

Chapter 6: How have dandelions been used in traditional medicine?

960.674 - 988.134 Josh Clark

And there are a couple of explanations here. I kind of like the second one. The first one is a Greek word for disorder, which is ataxia. But it's also could have come from Arabic for bitter herb, which is Taraxacum. And then when you combine bitter herb with the species name, which is, how would you say that? Aficionale? I don't know. Aficionale. That is a word for monastery storeroom.

0

988.234 - 1013.431 Josh Clark

So a bitter herb in a monastery storeroom basically is telling you, hey, we use this plant in a very productive way. Yeah. The whole disorder thing is totally insensible if you ask me. Yeah, I agree. So one of the other great things, so humans use dandelions, as we'll see, in a lot of different ways and have for a very long time. But our animal friends love dandelions, too.

0

1013.491 - 1036.646 Josh Clark

Those flowers, even though they look kind of flimsy, if you think about it, they're rich in nectar, packed with it. So bees, butterflies, basically any kind of pollinators love dandelions. Like you said, the reason the stalk falls to the ground after flowering and as the seed heads are developing, that's because birds love the little dandelion seeds.

0

1037.487 - 1064.429 Josh Clark

And one of the other things that's important about them, too, is they basically... Flower and seed almost around like the whole year, depending on where you live. So at times where there's not a lot of food sources for birds and pollinators, the dandelion's there to kind of keep them going through the, say, you know, late fall. Yeah, yeah.

0

1064.649 - 1088.328 Josh Clark

And I think it's one of the first guys to get going in the spring, too, right? I believe so, yeah. So we're going to get more in detail about, you know, how it's been eaten. But actually, let's save all that. Let's just tease it then and say it has long been eaten, is now being eaten again due to the sort of foraging movement happening in the culinary world. It's a great tease.

1088.348 - 1108.209 Josh Clark

I think that kind of kicked off in COVID when people are like, well, I can't go to the store. What can I eat that's in my backyard? I'll try dandelions. I've always wondered what they taste like. So, yeah, nice. So I think we said probably a couple times that people have been using dandelions for all sorts of reasons, not just as pot herbs.

1108.91 - 1132.369 Josh Clark

For a long time, one of the earlier mentions we can find was in the Arabic world, a couple of physicians named Raziz and Avicenna both wrote about some of the properties of dandelions and dandelion roots back in the 10th and 11th centuries. Right. And most of what they were talking about was its use as a diuretic.

1132.91 - 1147.98 Josh Clark

And medicinally speaking, that's probably the most famous property that dandelions have is they make you pee. And in fact, there's a couple of names that refer to that depending on where you are for dandelions that refer to the fact that they make you pee, right?

1148.261 - 1148.361

Yeah.

Chapter 7: What role did dandelions play during World War II?

1192.638 - 1215.683 Josh Clark

Oh, that's not true either? No, I just made it up. Oh, okay. I got you. I got you back for the, what was the lateral gene transfer gospel group that you got me with? Oh, geez. I don't even remember now. It was that. But I've only gotten you once. The score is Josh, 3,001. Oh, man. There was a 16th century book, too. What was the name of that one?

0

1216.705 - 1227.167 Josh Clark

People call it Garden of Health because the full title of it is Containing the Sundry, Rare, and Hidden Virtues of All Kinds of Simples and Plants.

0

1227.147 - 1247.496 Josh Clark

together with the manner of how they are used and applied in medicine for the health of man's body against diverse diseases and infirmities most common against men, gathered by the long experience and industry of William Langham, practitioner of physic. That's the actual title of that book, which is why there's like, yeah, we're just going to call it Garden of Health.

0

1248.237 - 1260.957 Josh Clark

I mean, Garden of Health really says what that says. I know. He didn't need all that extra stuff. That's like the introduction, I think. He put the introduction in the title. Yeah, that's a little, did it say the end at the end? Pretty much.

0

1260.977 - 1281.304 Josh Clark

This is from, like I said, the 16th century, and it talks a lot about, you know, all the kinds of things they thought it could help back then, toothaches, fevers, depression, even baldness. But they also talked about growing it alongside other vegetables and herbs in the garden. And you dug up this kind of cool fact. It's ethylene gas that they release.

1281.344 - 1300.523 Josh Clark

So if you actually grow dandelions or have dandelions growing near plants, Yeah. Isn't that neat? Super cool. Yeah. We're going to cover a lot of actually pretty cool little benefits, I guess, that they provide. But let's keep going with the tradition of using them medicinally, shall we?

1302.224 - 1327.809 Josh Clark

There's a guy named John Gerard who wrote a book in the 1630s, and he's like, hey, I want to contribute to this too. I've found that dandelion strengthens the weak stomach, which is important because actually if you use the roots of a dandelion, it contains a lot of inulin, which is an important prebiotic for gut health. So John Gerard wasn't just whistling Dixie. No, not at all.

1328.29 - 1348.474 Josh Clark

It turns out they have more vitamin A than spinach, more vitamin C than tomatoes. They've got a ton. We already mentioned potassium, but also a lot of calcium, a lot of iron, and then a lot of words that I can barely pronounce that you found that it's packed with, starting with flavonoids. That's the only one I had heard of.

1348.774 - 1372.986 Josh Clark

It has triterpenes, sesquiterpenes, phenolic acids, sterols, and coumarins. And they bestow things like antibacterial, antioxidant, anti-inflammatory, hepatoprotective, and anti-tumor properties. And you dug up a lot of ways that they actually help health, right? Yeah. So, I mean, we can talk all day about like the ways that people thought it would help you back in the 16th century.

Chapter 8: Why are dandelions considered beneficial for lawns and gardens?

1380.735 - 1397.754 Josh Clark

There was a study from 2015 in Canada that reported that dandelion extract can block ultraviolet UVB radiation when applied to the skin. It can also irritate the skin. So don't necessarily just like take dandelions and like start rubbing them all over yourself at the pool.

0

1398.956 - 1424.474 Josh Clark

There was a 2016 review of studies from a university in Denmark that suggests that dandelion extracts actually stimulates pancreatic cells to produce insulin. So it could potentially help control blood sugar. Right. And what about those one on the liver, too, right? Yeah, I said it was hepatoprotective, which means it helps the liver. And actually, it goes in and just kicks butt in your liver.

0

1424.694 - 1451.06 Josh Clark

It slows the progression of fibrosis, which is scarring of the liver. And the extract actually inactivates the cells that cause fibrosis in the liver. And essentially, your liver, as everybody knows, it can regenerate itself. Once the dandelion extract has gone in and stopped the fibrosis, the liver can heal. So it's incredibly helpful with protecting the liver from damage. I mean, that's nuts.

0

1451.261 - 1478.115 Josh Clark

It's almost like it was designed to do that for the liver. It's that effective. Yeah. I do want to mention the cancer one because Emily had a very funny, very Emily line. There was a 2020 – man, why do I do that lately? 2012, I did that. You do that a lot, yeah. What is happening? I don't know. It's a study from the University of Windsor in Canada about dandelion root extract can induce –

0

1478.095 - 1503.925 Josh Clark

apoptosis, which is cell death in pancreatic and prostate cancer in test tube in their cells in the test tubes, potentially preventing their spread. So this is something Emily knew. And this morning she was like, yeah, it's so like modern American at the very least to take something that could actually help fight cancer and spray chemicals on it to kill it. It caused cancer. Right. Yeah.

1503.945 - 1518.345 Josh Clark

And she stormed out of the room. Sometimes we have to learn the hard way, but it is reassuring that things seem to be coming full circle. You know what I mean? Yeah, I feel like people are getting a little more eyes open to stuff like that. Yeah, they're getting on board the dandelion train.

1518.595 - 1545.615 Josh Clark

So one thing about those studies that you said, like they're essentially confirming to our modern tastes what the Chinese knew all the way back in 659 CE. People like Nicholas Culpepper knew in the 18th century. All these people wrote about this stuff and just how effective it was. And then now science is going in and saying these people were right and here's how it is effective.

1545.595 - 1565.587 Josh Clark

I think that's pretty cool. And in part because of that, the dandelion is being rehabilitated. But first, I think we need to mention, you said that it came by North America. I piped up on purpose, I think more than once even. I was so excited about that. And it's possible it was actually on the Mayflower. It arrived that early.

1565.647 - 1588.397 Josh Clark

And they think that because of plant migration, as we talked about before, the dandelion may have spread ahead of Europeans as they entered further and further into the North American continent. And so Native Americans that they encountered may have already been using dandelions in some of their medicines. Right. Oh, yeah, absolutely. They were drinking it in tonics.

Comments

There are no comments yet.

Please log in to write the first comment.