Photos - Are any of these feral hemp?

I was out nature walking and thought a lot of these looked surprisingly 'marijuana' like. I have never grown/harvested or whatever so I've only really seen photos of fully mature specimens. I have no idea what they 'should' look like around this time of year. Are any of these marijuana / hemp / ditch weed?

Specimen 1:
Found laying on its side onto a trail. It is kind of distorted because it was knocked down.
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Specimen 2:
This plant is in seemingly huge numbers down this trail. I really hope this one is a 'good' one.

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Are those weird dangly things a sign that these are indeed mj, but male?

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And would this one be a female mj/hemp? It seems to be the same 'type' of plant.

 

https://www.youtube.com/watch?v=HhTv2kSBMhc"]no no NO, HELL NO!!! - YouTube

 

Spec 3:
Only grabbed one photo of this one... My friend seemed pretty damned sure this was the real deal, but he also thought every 3rd plant was hemp. I have no idea and this is why I'm asking.
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Spec 4:
This one seemed 'planted'... Not sure though.
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you are getting warmer, but again no..

 

Lol you sure to all of them? I didn't ever think they were "marijuana" but thought they may have been feral hemp...

One last specimen:
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Feral hemp plants look like marijuana plants. Until flowering, anyways. Most definitely not hemp pictured above.

 

none of those are cannabis....I have the same stuff on my property.....besides....even if you find a field hemp what would you do with it....weave it into rope and overpriced clothing?

 

This is what hemp looks like.

 

Your pictures are of 1 Canada Moonseed, 2 Motherwort, 3 Stinging Nettle, Although there are many cannabis species there are thousands of plant species that look similar ..sorry ...