Why Don't These Plants Need Seeds? (Moss and Ferns): Crash Course Botany #8

Forget your favorite flowers, because we’re talking all about the mean green sporing machines. In this episode of Crash Course Botany, we'll dive into the first few branches of plants’ phylogenetic tree-bryophytes and seedless vascular plants, like mosses and ferns. These plants are the unsung heroes of the botanical world, and we’re giving them their due.
Chapters:
The Plant World's Unsung Heroes 00:00
Plant Phylogeny 1:09
Bryophytes 3:08
The Bryophyte Life Cycle 7:15
Seedless Vascular Plants 9:39
Review & Credits 12:20
Sources: docs.google.com/document/d/1P...
***
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Пікірлер: 72

  • @crashcourse
    @crashcourse10 ай бұрын

    The answer to the extra credit question is… sphagnum moss! What plant would you like to thank for its helpfulness?

  • @kbrcomplexly

    @kbrcomplexly

    10 ай бұрын

    i'd like to thank aloe for alleviating the sunburns i get on my unfortunately pale skin 😅

  • @kingpopaul

    @kingpopaul

    10 ай бұрын

    Was also used as menstrual pads.

  • @QuiteSanelyInsane

    @QuiteSanelyInsane

    10 ай бұрын

    Sword ferns! The orange sporangia on the underside of their phyllids can be used to treat minor cuts, abrasions, and even stinging nettle :)

  • @amandas5398

    @amandas5398

    10 ай бұрын

    I’d like to thank stinging nettle - for the medicinal help it provides to humans AND the boost it’s presence gives to other plants in my garden!

  • @pedrostormrage
    @pedrostormrage10 ай бұрын

    13:08 The bryophyte that can be used to dress wounds is the sphagnum (or peat) moss (you can see it at 4:53). It is known to absorb moisture a lot quicker than cotton (90% percent of the cells in a sphagnum plant are dead, so they can be filled with water), in addition to being an effective antiseptic (the plant's cell walls have negatively charged sugar molecules, which attract positively charged nutrient ions (like potassium, sodium and calcium), which when released make the environment around it acidic, inhibiting the growth of bacteria.).

  • @MariaMartinez-researcher
    @MariaMartinez-researcher10 ай бұрын

    "Mars will come to fear my botany powers." Today, I learned something about evolution. The living beings that branched earlier, haven't stopped evolving in their particular ways. If they are still alive, is because they are still successful. They aren't primitive or lower. They are tough and smart.

  • @67comet
    @67comet10 ай бұрын

    I "LOVE" your energy! You're an awesome addition to the Crashcourse crew!.. We appreciate you!

  • @Stephshouse23
    @Stephshouse2310 ай бұрын

    I’m in love with this series I wanted to be a plant scientist but life has taken me down a different path. No other show teaches with accuracy and enthusiasm than this. With Crash Course I have access to knowledge I would otherwise wouldn’t know where to begin without paying for classes. Thank you thank you thank you! I’ve been watching crash course since I was 14 in biology class freshman year in 2014 and I just want to say that I believe wholeheartedly in cc and hope one day I’ll be able to support the next generation of curious kids like me ♥️

  • @Beryllahawk
    @Beryllahawk10 ай бұрын

    Ferns and mosses are the BEST. I have always loved them because they look so soft and green, they really make me think "this is a lush place"! I'm starting on a journey this year to learn how to propagate ferns, too - I have a beautiful patch of them and I want to get them in many more places in my yard, I just have to learn how to help them do their thing! It promises to be a challenge but I'm excited!

  • @Syco108
    @Syco10810 ай бұрын

    Gurl! That hair! You're killing it! Thank you for the plant knowledge❤

  • @marim0y
    @marim0y10 ай бұрын

    Mosses are awesome. I loved this.

  • @99721
    @9972110 ай бұрын

    You could say the Bryophytes are much _more_ evolved, since they are older and have had more time to diversify and perfect.

  • @Go4Noctis

    @Go4Noctis

    10 ай бұрын

    Nice thought but no because EVERYTHING alive has been around the same amount of time and has been evolving the same amount of time.

  • @erikholgersson9235

    @erikholgersson9235

    10 ай бұрын

    But that is only the case when you start setting hard lines for when a species is a new species. I mean humans are a recent species, but our ancestors are responsible for evolving into humans. So you have to count that time evolving into humans as well. This view would mean that all species on earth have had equal time to evolve since we all came from the same common ancestor

  • @fayem4091
    @fayem409110 ай бұрын

    This is my favourite series ever!

  • @corgi42069
    @corgi4206910 ай бұрын

    Your enthusiasm is infectious!!

  • @NickGamer1Bmv
    @NickGamer1Bmv10 ай бұрын

    Thanks for the new knowledge

  • @CristinaMCGil
    @CristinaMCGil10 ай бұрын

    unrelated to plants, I'm mesmerized by the butterfly clips in your hair!! they move!!!

  • @thesocialnerd
    @thesocialnerd10 ай бұрын

    Yay! New episode! Loving the series so far Also, looking at my lil rabbit foot fern while I watch this episode and letting her hear about her ancestors lol

  • @guanabanajuice13
    @guanabanajuice1310 ай бұрын

    This is my version of Saturday Morning Cartoons. Thank you so much!

  • @camiloharritt3007
    @camiloharritt300710 ай бұрын

    Amazing video

  • @joshuaharrison9331
    @joshuaharrison933110 ай бұрын

    The group of plant-nerds I go to uni with are Bryophyte obsessed - They were the first plants I learned to key out & study so I still have a keen respect for them & their pioneering niche.

  • @roxcaz
    @roxcaz10 ай бұрын

    Great Course. Thank you

  • @duskadown6751
    @duskadown675110 ай бұрын

    I love moss

  • @therongjr
    @therongjr10 ай бұрын

    Your energy is amazing, and I'm so happy that you have the same love of liverworts and club-mosses that I do! 💚 They don't get enough attention . . . and the alternation of generations is somehow so alien to us, although it's all around us! 😮

  • @Anuchan
    @Anuchan10 ай бұрын

    This video has spurred my desire to learn more about botany. Thanks!

  • @rckli
    @rckli10 ай бұрын

    I loved all of this, her attitude, and this weed I’m smoking 🎉

  • @maggiewang30
    @maggiewang3010 ай бұрын

    I like listening to your video to learn English.

  • @gucciflipflops6064
    @gucciflipflops606410 ай бұрын

    It would've been awesome if I had this video to study for my exams during my first botany course 😭 The alternation of generations confused me to no end but it's never to late to understand old information! Thanks thought bubble!! 🫂

  • @christopherwarner6896
    @christopherwarner689610 ай бұрын

    Def favorite episode so far!

  • @georgigeorgiev9931
    @georgigeorgiev993110 ай бұрын

    I love masses 💜 Used to have them as mount wall

  • @canis2020
    @canis202010 ай бұрын

    I lichen these videos so much!

  • @Shake1
    @Shake110 ай бұрын

    Highlights to brazil, i came here by a colleague recommendation and JUST LOVED the way you teach, it's nothing like a botany book you could borrow in library but it is all contextualized and rich of content and love. Although, i'd like to request some captions since there are many scientific words and some others i couldn't get

  • @Flow_3801
    @Flow_380110 ай бұрын

    This is so educative to listen to, i wish this video came earlier in my high school, nice work

  • @chocomalk
    @chocomalk10 ай бұрын

    Gotta be the cutest thumbnail ever lol

  • @ponyote
    @ponyote10 ай бұрын

    Here from Be Smart. Yay plants!

  • @Davlavi
    @Davlavi10 ай бұрын

    Love furns.

  • @stax6092
    @stax609210 ай бұрын

    You Said think of a Plant and I immediately thought "Fern". Wasn't sure if I should've thought of Moss.

  • @corruptedsociety_
    @corruptedsociety_10 ай бұрын

    I’m not in school, but I love crash corse regardless

  • @esteriistiel331
    @esteriistiel33110 ай бұрын

    I almost remembered the answer to the extra credit question. I was gonna say it's called old man's beard lichen, all because of the game "the long dark"

  • @KerrikkiLurgan
    @KerrikkiLurgan10 ай бұрын

    Mosses are my favourite plants

  • @boehrb
    @boehrb10 ай бұрын

    I'm lichen those fluttery butterfly hair clips!!

  • @muahlakaparak
    @muahlakaparak10 ай бұрын

    Beautiful👍

  • @electroxyz5674
    @electroxyz567410 ай бұрын

    i have waiting for this video thanx🥳👌

  • @Ganymedescup
    @Ganymedescup10 ай бұрын

    Dress my wounds with that peat moss, please.

  • @samwill7259
    @samwill725910 ай бұрын

    Like any good science teacher, she's tossing out the puns thick and fast. Bless

  • @novice7T7
    @novice7T710 ай бұрын

    if plants took over all the soil how many plans would there be or would huge plants spur in groups.

  • @sarahgriffith1424
    @sarahgriffith142410 ай бұрын

    Alexis is awesome!!!!

  • @MeatPops
    @MeatPops10 ай бұрын

    3:35 A lot of fun-gis were hurt by this statement.

  • @nicolenew1708
    @nicolenew170810 ай бұрын

    AMAZING

  • @caitlinhanson2773
    @caitlinhanson277310 ай бұрын

    Love Crash Course. Is there any possibility of the Literature part of Crash Course to do an analysis and summary of George Lammings "In the Castle of my Skin", I have been struggling to grasp it a bit.

  • @therongjr
    @therongjr10 ай бұрын

    0:48 - I don't think those are liverworts? It looks like the right kind of environment for them, but they look like some are on stems and have radial vasculature.

  • @werebitch1313
    @werebitch131310 ай бұрын

    I love her passion about this! It is wonderful to see.

  • @KifoNemkana
    @KifoNemkana10 ай бұрын

    I love plants

  • @lr8786
    @lr878610 ай бұрын

    Her butterflies are cute.

  • @mercuriallimit
    @mercuriallimit10 ай бұрын

    my god, braided hair WITHIN braided hair!! it looks so nice.

  • @sydneyschmidt4267
    @sydneyschmidt426710 ай бұрын

    Alexis you’re the best!!! Your foraged veggie tik toks blew my mind when I first saw them:) so cool you’re doing crash course botany! Can’t imagine a better person!

  • @dapprligtnin98
    @dapprligtnin9810 ай бұрын

    Oh sweet Narcos Mexico Season 1 memories come back to me, COME BACK TO ME!

  • @AdnicajChiquis
    @AdnicajChiquis10 ай бұрын

    I hit 👍 at "mossome"

  • @imgooley
    @imgooley10 ай бұрын

    The thumbnail madee hear yahaha! In my head

  • @elainewu7266
    @elainewu726610 ай бұрын

    Sphagnum mosses

  • @hrhevansjohn8528
    @hrhevansjohn852810 ай бұрын

    👍

  • @sankimalu
    @sankimalu10 ай бұрын

    The host with the MossT…

  • @shawnholbrook7278
    @shawnholbrook727810 ай бұрын

    Lichens!

  • @GamerKimberly191
    @GamerKimberly19110 ай бұрын

    Ummm cool

  • @shawnholbrook7278
    @shawnholbrook727810 ай бұрын

    Is the answer spaghum moss?

  • @Shehz-95
    @Shehz-9510 ай бұрын

    Why is Crash Course getting quite low views these days?

  • @Sunflower-sg1it
    @Sunflower-sg1it10 ай бұрын

    she is so pretty

  • @drsingingeagle
    @drsingingeagle10 ай бұрын

    So do liverworts have livers? How about warts? 😜

  • @katsomeday1
    @katsomeday110 ай бұрын

    The first multicellular life on land isn't plant or animal. The oldest known land life fossils, (about 135 million years older than plans,) is fungus. Why is it educational shows like this always seem to forget the third kingdom of multicellular life fungi.

  • @kartikchopra519
    @kartikchopra51910 ай бұрын

    Mausam in hindi means weather