Bidens spp – a sticky subject (part 2)

Images taken in a controlled environment or with a posed subject. All subject types.

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Marcepstein
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Bidens spp – a sticky subject (part 2)

Post by Marcepstein »

These last images are close-ups of the mature Begger’s tick seed head and barbed nutlets.
Bidens-seed-head-close-1--2022-12-03.jpg
Bidens-Seed-Barbs--2022-12-02-02.jpg
Bidens-seadhead-barbs-2B--2022-12-20.jpg
Bidens-Barbed-seed-2--2022-12-05.jpg
The last two show the barbed nutlet. Comments always welcome.
Beggers-tick-seed-12-3-22.jpg
Bidens-Barbed-seed-2022-12-04.jpg

JayMcClellan
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Re: Bidens spp – a sticky subject (part 2)

Post by JayMcClellan »

I especially like the close-ups of the barbs! My wife and I learned about these things the hard way - we found some attractive yellow "wildflowers" growing in the garden and didn't recognize them, decided to let them mature so we could grow more. Dumb idea! Yes they are sort-of attractive when flowering, but then they turn into grabby seed monsters and we had beggarticks everywhere. They like every kind of fabric, and are especially fond of socks.

rjlittlefield
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Re: Bidens spp – a sticky subject (part 2)

Post by rjlittlefield »

Thanks for these excellent photos!

It seems odd, but I do not recall ever encountering these things in real life. Lots of other sticky seeds, but not these.

I checked with https://www.idigbio.org/portal/search , and sure enough there are Bidens species reported near everywhere I have ever lived, but ... ?

--Rik

Marcepstein
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Re: Bidens spp – a sticky subject (part 2)

Post by Marcepstein »

Thanks for the comments. Bidens will get into your socks for sure :!:

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