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Moment of Um

Why do different flowers have different smells?

Moment of Um

American Public Media

Kids & Family, Education For Kids

4.41.5K Ratings

🗓️ 1 August 2024

⏱️ 4 minutes

🧾️ Download transcript

Summary

For the most part, flowers smell really great, right? They give off scents that are sweet, syrupy, perfumy and fresh. But they don’t all smell the same. We asked botanist Josh Felton from Colorado College why that is.


Got a question you’d like to sniff out? Send it to us at BrainsOn.org/contact, and we’ll find a budding expert to give the answer.

Transcript

Click on a timestamp to play from that location

0:00.0

From the brains behind brains on, this is the moment of um.

0:03.4

Answering those questions that make you go.

0:08.0

Um, um.

0:10.0

Um, um.

0:11.0

Um, um.

0:12.0

Um. Moment of um comes to you from a moment of um comes to you from APM Studios, I'm Molly Bloom.

0:25.6

Let's say you're walking through a field of flowers and your eyes are feasting on a rainbow of colors. The bright yellow

0:34.4

sunflowers, the blazing blue irises, the deep red roses, and perky pink

0:38.8

carnations. But your eyes aren't the only ones experiencing an explosion of variety.

0:44.0

Just think of all the fresh scent wafting into your nose too.

0:47.5

Each flower has its own unique scent.

0:49.5

Many are sweet, syrupy, and perfumy, but some emit a strong musky scent like garlic.

0:56.7

So what gives each flower its own unique scent, and why are there so many different smells?

1:01.4

Listen to Gloria was wondering about this.

1:03.0

My question is, why do different flowers have different smells?

1:07.0

So scent submitted from flowers play a critical role in attracting visitors

1:12.0

such as animals and insects and are often one piece of the way scientists determine what exactly visits those flowers.

1:20.0

My name is Josh Felton. I'm a senior at Colorado College and I am a botanist who has been studying the reproductive biology of a group of tropical plants called bramiliads.

1:33.0

So one plant I study has flowers with a strong garlicky odor that is somewhat unpleasant but has such an interesting smell that you keep wanting to come back to get a whiff.

1:44.4

And so we believe that this species is pollinated and visited by bats

1:48.8

and other flowers who attract pollinators at night often have strong, spicy, and or musty odors, but can also have fruity sense as well.

1:59.0

And for these nighttime flowers who are attracting pollinators such as bats, moths, and moths, these scents or olfactory cues play a crucial role in helping these creatures find the flower at night.

...

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